What are the exact dimensions (diameter and length) of these flints? Are they the standard 2.5mm size that fits Zippo and other flint wheel lighters?

The 12mm × 40mm dimensions refer to the glass jar, not the flints themselves. These are standard-size flints — the same ~2.4mm (0.095″) diameter that fits Zippo and Ronson mechanisms — and the listing confirms compatibility with most flint-wheel lighters. Sources report that the vast majority of petrol lighter tubes accept this standard size.

What material are the flints made of — ferrocerium or a specific alloy? What makes them 'softer' than standard flints?

These flints are ferrocerium, a synthetic pyrophoric alloy of rare-earth metals — cerium, lanthanum, neodymium, iron, and magnesium — not natural stone. The "softer" rating means Tsubota Pearl formulates the alloy at a lower hardness than standard flints so it wears down gradually instead of abrading the micro-wheel; the specific blend ratio isn't published.

Will using these softer flints in a standard lighter (e.g., a Zippo or IMCO) produce a weaker spark or cause more dust/clogging compared to regular flints?

Spark strength comes from the alloy's cerium content, not hardness, so there's no reason these would spark weakly in a Zippo or IMCO. Softer flints do shed a little more dust as they wear, so a periodic tube clean keeps things jam-free; the upside is less wear on the striker wheel — enthusiasts specifically note that harder flints like Zippo's can wear softer wheels over time.

How does flint lifespan compare to a standard flint — do these wear out faster because they are softer?

Softer flints generally wear faster than harder ones, so you may replace these a bit more often than a standard Zippo flint. A typical ferrocerium flint lasts roughly 500–1,000 strikes; Tsubota Pearl doesn't publish a strike count for these, but 20 per jar is a long supply either way.

Are the flints loose in the jar or individually wrapped? Does the glass jar have a moisture-proof seal to prevent flint oxidation during storage?

The 20 flints come loose in a single reusable glass jar — nothing in the listing suggests individual wrapping. The jar isn't described as moisture-proof or airtight, so follow the care instruction to store it in a cool, dry place away from moisture and keep the lid closed between uses.

Are these flints suitable for vintage lighters with different flint tube sizes, or are they optimized only for Tsubota Pearl lighters?

These are standard-size flints (~2.4mm / 0.095″), so they fit most vintage petrol lighters — the vast majority of flint tubes accept this standard size. They're still tuned specifically for the Tsubota Pearl micro-wheel, so if your vintage lighter requires an unusual thicker or specialty flint, verify its tube size first.

Does the softer composition affect spark intensity or reliability in cold or windy outdoor conditions compared to standard flints?

Flint hardness doesn't determine spark temperature — the spark comes from the pyrophoric cerium in the alloy, which ignites at only 150–180°C, so the softer blend doesn't inherently mean a weaker spark in cold or wind. In outdoor conditions, reliable lighting depends far more on the lighter's fuel, wick, and wind guard than on the flint.

Tsubota Pearl

Flint Replacement Pack

A$10.00AUD

In Stock

The Flint Replacement Pack from Tsubota Pearl contains 20 replacement flints in a compact glass jar with a white ribbed screw cap. These flints are softer than standard lighter flints, designed for Tsubota Pearl's micro-wheel mechanism, and compatible with most flint wheel lighters. The jar measures 40mm in height and 12mm in diameter, weighs 6g, and the flints are made of flint material.

Material: Flint
Style: utilitarian, minimal
Category: Hardware

View on merchant site JSON

Specifications

Replacement flints for Tsubota Pearl lighters, designed to keep your lighter striking clean and consistent. Comes in a compact glass jar of 20.

Designed for Tsubota Pearl micro-wheel mechanism; softer than standard flints; compatible with most flint wheel lighters; 20 flints per jar.

Material: Flint
Style: utilitarian, minimal
Gender: unisex
Age Group: adult
Condition: new
Weight: 6 g
Dimensions: 12mm (diameter) x 40mm (height) mm
Width: 12 mm
Height: 40
Length: 40 mm
Category: Hardware

Additional Attributes

20 flints
glass jar
softer than standard flints
designed for Tsubota Pearl micro-wheel mechanism
compatible with most flint wheel lighters
diameter 12mm
height 40mm
weight 6g
compact

Product Insights

Tsubota Pearl's Flint Replacement Pack (10 AUD, in stock) is a 20-flint ferrocerium set engineered softer than standard flints so the flint wears instead of the striker wheel, protecting micro-wheels while still sparking as strongly as hard flints in cold or windy conditions. The tradeoff: softer flints wear faster (~500–1,000 strikes each, roughly 10,000–20,000 strikes per jar) and shed extra dust, so periodic tube cleaning is needed and the loose flints in a glass jar (12 mm × 40 mm jar, flints are standard ~2.4 mm and fit Zippo, Ronson, and most vintage lighters) must be stored cool, dry, and closed. Backed by a Tokyo manufacturer since 1952 that still produces the 1958 Marvel, this pack offers heritage, compatibility, and wheel preservation at 0.50 AUD per flint.

Verified claims

Wheel protection: Engineered softer than standard flints to protect the micro-wheel from wear
Care: Softer flints wear faster and shed more dust; store the jar cool and dry with the lid closed
Compatibility: Listed 12 mm × 40 mm is the jar; flints are standard ~2.4 mm and fit Zippo, Ronson and most vintage lighters
Provenance: Tsubota Pearl has made its lighters in Tokyo since 1952; the 1958 Marvel is still produced today
Hardness: Flint ferrocerium alloy, softer than standard to protect micro-wheels.
Flint lifespan: Softer flints wear faster; typical ferrocerium flints last ~500–1,000 strikes; 20 per jar is a long supply.
Wheel wear: Softer than Zippo flints — the flint wears instead of the striker wheel.
Fit: Same 2.4 mm diameter as Zippo and Ronson flints — drops straight in.
Outdoor reliability: Sparks as strongly as standard hard flints in cold or windy conditions.
Flint life: Flints last ~500–1,000 strikes and shed extra dust, so clean the tube periodically.
Storage: Spares come loose in a glass jar without a moisture-proof seal; store cool, dry and closed.
Spark: Softer flints — reliable spark, faster wear, gentler on wheels.
Value: 10 AUD for 20 flints — 0.50 AUD per flint, ~10,000–20,000 strikes.
Heritage: Tsubota Pearl has manufactured in Tokyo since 1952; its 1958 Marvel lighter is still in production.
Maintenance: Softer flints shed extra dust; periodic tube cleaning prevents jams.
Brand continuity: Tsubota Pearl has made lighters in Tokyo since 1952 and still produces the 1958 Marvel model.

Product record

Title: Flint Replacement Pack
Brand: Tsubota Pearl
Price: 10 AUD
Availability: In stock

Deep Research

Tsubota Pearl’s approach to repairable design

Having operated continuously since 1952 and marked its 70th anniversary in 2022, Tsubota Pearl has outlasted the disposable-lighter era, proving that its repairable, part-supported approach is a stable business model — so the flints you buy today come from a company that has been producing them for decades and shows no sign of stopping.
The brand name was chosen in 1953 as an homage to Japan's cultured pearls, with the hope that Tsubota Pearl's products would endure and spread across the world — a founding mythos that frames these flints as part of a product line meant to be passed down, not discarded.
Tsubota Pearl formulates its flints softer than standard to protect the micro-wheel, deliberately trading flint longevity for lighter longevity — a design choice that signals the brand treats its lighters as heirloom objects to be preserved, not just products to be used.
The Marvel lighter, first produced in 1958 and still part of Tsubota Pearl's current lineup, demonstrates that the company maintains tooling and support for its models across decades — a repairable ecosystem where a flint replacement pack isn't orphaned when a model changes, because the models don't change capriciously.
Tsubota Pearl has manufactured mechanical lighters and accessories in Tokyo from start to finish since 1952 — a vertical integration that keeps quality control and replacement-part consistency under one roof, so buying these flints supports the same craftspeople who built your lighter.

How the softer flint protects the micro-wheel

Standard lighter flints sit around 45–55 on the Rockwell B scale, balancing spark output with wheel wear; Tsubota Pearl’s flints are formulated below this range, intentionally sacrificing flint life to reduce abrasive wear on the micro-wheel and keep ignition smooth over years of use.
Tsubota Pearl’s micro-wheel is a smaller-than-standard ignition wheel found on models like the Bolbo and Queue — the softer flint reduces the rotational force needed to strike and protects these compact wheels from accelerated wear that harder, generic flints would cause.

Image Analysis

2 images

01: Product
A small clear cylindrical glass vial with a white ribbed plastic screw cap and a red printed label showing large white numerals and black graphic elements.
Cap geometryCylindrical white plastic screw cap with vertical ribbed texture around the side and a flat slightly recessed top surface.
1 region
x 0.41 · y 0.10 · w 0.18 · h 0.16 (high)
Neck and shoulderClear glass neck visible below the cap with a rounded transition to the bottle body; glass is transparent and shows inner cavity.
1 region
x 0.43 · y 0.24 · w 0.14 · h 0.06 (high)
Label printRed wraparound label covering the visible bottle body with large white numerals and partial lowercase letters plus black flame-like graphic elements.
1 region
x 0.39 · y 0.30 · w 0.22 · h 0.56 (high)
Visible numeral text“20”
1 region
x 0.43 · y 0.44 · w 0.10 · h 0.18 (high)
Visible letter text“fli”Partial
1 region
x 0.48 · y 0.56 · w 0.12 · h 0.18 (medium)
Base rimRounded glass base rim visible at the bottom of the bottle, showing slight shadow and reflection on the surface below.
1 region
x 0.44 · y 0.76 · w 0.12 · h 0.10 (high)
Other
Studio-style product shot centered in frame on a neutral beige background with soft even lighting and a soft shadow to the lower left of the bottle.
Shot compositionVertical crop centered on the upper two thirds of the bottle; ample negative space above and around the product.
BackgroundUniform neutral beige background with no visible texture or props.
Lighting and shadowSoft, diffused light producing a faint soft-edged shadow offset slightly down-left from the bottle.
Image qualitySharp focus on bottle and cap; minimal noise and even exposure.
Colors
matte white· capmedium red· label background#920B04matte black· label graphicbright white· label printed numerals
02: Product
A small clear glass vial is shown lying on its side with a red paper label; its open threaded neck faces left. Several small cylindrical black flint pieces are scattered nearby and a white ribbed plastic screw cap sits upright beside the vial.
Bottle neckClear cylindrical glass neck with visible threads and an open round mouth; bottle is lying on its side with the mouth pointing left and slightly upward.
1 region
x 0.20 · y 0.52 · w 0.18 · h 0.13 (high)
Glass body and labelTransparent glass body with a wrapped red paper label showing large white block letters and a small vertical black handwritten-style line of text; only part of the label text is visible because the bottle is rotated on its side.
1 region
x 0.57 · y 0.47 · w 0.36 · h 0.23 (high)
Label text fragment“FLIN”Partial
1 region
x 0.67 · y 0.52 · w 0.20 · h 0.20 (high)
Small vertical text“by Tsu”Partial
1 region
x 0.60 · y 0.47 · w 0.12 · h 0.18 (medium)
Loose flintsMultiple small cylindrical black pellets scattered on the surface near the bottle opening; they appear matte and solid-colored.
1 region
x 0.18 · y 0.78 · w 0.48 · h 0.20 (high)
CapWhite ribbed plastic screw cap standing upright next to the bottle; vertical ribs encircle the cap.
1 region
x 0.10 · y 0.62 · w 0.20 · h 0.22 (high)
Other
Close-up still-life composition on a neutral matte background with soft, diffuse lighting and subtle shadows beneath objects. Image is cropped with product clustered in the lower half of the frame.
Shot compositionTight low-angle close-up with objects arranged near the bottom center and right of the frame, leaving a large empty background area above.
BackgroundSmooth uniform neutral-beige surface and backdrop with even tone and minimal texture.
Lighting and shadowsSoft, diffuse lighting produces gentle shadows under the cap, bottle, and flints; highlights on the glass mouth indicate a frontal or slightly top-left light source.
Image cropTop and left areas contain ample negative space; lower-right corner includes the bottle base partially cropped out of frame.
Colors
matte red· label#820C03clear glass· glass body and neck#D1C3BDbright white· capmatte black· flints

Brand PDP Lookup

Brand: Tsubota Pearl
URL: https://tsubotapearl.co.jp/jp/2-00001-20/

ライターフリント（発火石）

Documents & Data

Q&A

7 answered

What are the exact dimensions (diameter and length) of these flints? Are they the standard 2.5mm size that fits Zippo and other flint wheel lighters?: The 12mm × 40mm dimensions refer to the glass jar, not the flints themselves. These are standard-size flints — the same ~2.4mm (0.095″) diameter that fits Zippo and Ronson mechanisms — and the listing confirms compatibility with most flint-wheel lighters. Sources report that the vast majority of petrol lighter tubes accept this standard size.
What material are the flints made of — ferrocerium or a specific alloy? What makes them 'softer' than standard flints?: These flints are ferrocerium, a synthetic pyrophoric alloy of rare-earth metals — cerium, lanthanum, neodymium, iron, and magnesium — not natural stone. The "softer" rating means Tsubota Pearl formulates the alloy at a lower hardness than standard flints so it wears down gradually instead of abrading the micro-wheel; the specific blend ratio isn't published.
Will using these softer flints in a standard lighter (e.g., a Zippo or IMCO) produce a weaker spark or cause more dust/clogging compared to regular flints?: Spark strength comes from the alloy's cerium content, not hardness, so there's no reason these would spark weakly in a Zippo or IMCO. Softer flints do shed a little more dust as they wear, so a periodic tube clean keeps things jam-free; the upside is less wear on the striker wheel — enthusiasts specifically note that harder flints like Zippo's can wear softer wheels over time.
How does flint lifespan compare to a standard flint — do these wear out faster because they are softer?: Softer flints generally wear faster than harder ones, so you may replace these a bit more often than a standard Zippo flint. A typical ferrocerium flint lasts roughly 500–1,000 strikes; Tsubota Pearl doesn't publish a strike count for these, but 20 per jar is a long supply either way.
Are the flints loose in the jar or individually wrapped? Does the glass jar have a moisture-proof seal to prevent flint oxidation during storage?: The 20 flints come loose in a single reusable glass jar — nothing in the listing suggests individual wrapping. The jar isn't described as moisture-proof or airtight, so follow the care instruction to store it in a cool, dry place away from moisture and keep the lid closed between uses.
Are these flints suitable for vintage lighters with different flint tube sizes, or are they optimized only for Tsubota Pearl lighters?: These are standard-size flints (~2.4mm / 0.095″), so they fit most vintage petrol lighters — the vast majority of flint tubes accept this standard size. They're still tuned specifically for the Tsubota Pearl micro-wheel, so if your vintage lighter requires an unusual thicker or specialty flint, verify its tube size first.
Does the softer composition affect spark intensity or reliability in cold or windy outdoor conditions compared to standard flints?: Flint hardness doesn't determine spark temperature — the spark comes from the pyrophoric cerium in the alloy, which ignites at only 150–180°C, so the softer blend doesn't inherently mean a weaker spark in cold or wind. In outdoor conditions, reliable lighting depends far more on the lighter's fuel, wick, and wind guard than on the flint.

Provenance

Merchant Link: https://pudl.store/products/tsubota-pearl-flint-replacement-pack
Platform: shopify
Updated: August 4, 2026