is this 0.4mm or 0.7mm?

The former version “Refill for gel ink pens Gelion 39” is marked 0.4 mm which is the LINE WIDTH. The new version “Refill Gelion+ 0.7” is marked 0.7 mm which is the BALL DIAMETER. The ball diameter of 0.7 mm equates to the line width 0.4 mm. Schneider decided to indicate the ball diameter instead of line width, as this is common practice for gel ink refills/pens. Hope it clarified

Will this write on plastic?

Not on on plastic soda bottle but yes on a plastic bag - but it won't hold to the plastic so it will smudge and wipe off with the slightest of touches.

Gelion+ 39 fit parker pens?

I believe it is the standard Parker size.

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Schneider 103901 GS Cartridge Gelion 39 Black

Product ID: 284447518

Details

Brand
Schneider
Item dimensions L x W x H
9.9 x 3 x 1.3
Item weight
18 g
Number of pieces
10
Style
Gel Ballpoint

💧waterproof, fade-resistant gel ink

🔄Plug+Play universal refill fit

🖊️0.4mm jumbo stainless steel tip

¥4477

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Description

🖋️ Write Bold, Write Smart – Never Miss a Stroke!

SLEEK BLACK INK - Classic black gel ink delivers professional, crisp writing that stands out in meetings and presentations.
BULK PACK CONVENIENCE - Get 10 high-quality refills in one pack—perfect for professionals who never want to run out.
UNIVERSAL COMPATIBILITY - Plug+Play design fits all Schneider ballpoint pens and Gelion 1 models for instant, hassle-free refills.
EFFORTLESS PRECISION WRITING - Experience smooth, consistent strokes with the 0.4mm jumbo stainless steel tip designed for flawless script.
LONG LASTING INK PERFORMANCE - Indelible, waterproof gel ink ensures your notes stay sharp and smudge-free all day long.

The Schneider 103901 GS Cartridge Gelion 39 Black is a premium gel rollerball refill featuring a 0.4mm wear-resistant stainless steel tip and waterproof, fade-resistant black gel ink. Designed with Plug+Play universal compatibility, it fits all Schneider ballpoint pens and Gelion 1 models, offering smooth, smudge-free writing. Sold in packs of 10, it’s the ideal refill for professionals seeking reliable, long-lasting performance.

Specifications

ASIN	B00178052C
Best Sellers Rank	#17,274 in Office Products ( See Top 100 in Office Products ) #130 in Pen Refills
Brand Name	Schneider
Country of Publication	Korea, Republic of
Customer Reviews	4.4 4.4 out of 5 stars (1,494)
Global Trade Identification Number	04004675026965
Ink Color	Black
Item Dimensions	9.9 x 3 x 1.3 centimeters
Item Weight	18 g
Manufacturer	Schneider
Manufacturer Part Number	4004675026965
Model Number	103901
Number of Pieces	10
Package Size Name	10 Pieces
Point Type	Ballpoint
Style	Gel,Ballpoint,Rollerball
Unit Count	10 Count

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¥4477

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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