I presume you are asking about the color of ink with which it writes. If you purchase a "Rolling Writer" pen which has a black case and top, it will write with black ink. If you purchase a pen which has a blue case and top, it will write with blue ink. If you purchase a pen which has a red case and top, it will write with red ink, etc. Bob

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ぺんてる　ローリング　ライターペン

Q: Are these non-smudge when using with a straight edge or protractor? I draw custom geometric designs for book covers and I'm tired of smudges.

It is like a rollerball gel ink so until it dries it would smudge

Q: Has anyone found a solution to getting stuck ink to flow in these pens? Tapping them hard can work, but not always. Specifics appreciated. Thanks.

I always store mine "cap up" so the ink flows away from the tip. Never really had that problem.

Q: Hi, this is for a box of 12 pens, correct? Thank you!

Dear Heidi, Yes, there are 12 Pens in each box.

Product ID: 779565261

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Details

Brand
ぺんてる
Writing Instrument Form
Roller Ball
Color
blue
Ink Color
Blue
Age Range (Description)
Adult

📎convenient pocket clip

🧴1 mile+ ink capacity

🖊️0.8mm medium rollerball tip

Frequently Bought Together

Pentel Rolling Writer Pen, 0.8 Millimeter Cushion Ball Tip, Blue Ink, Box of 12 (R100-C)

Pentel Rolling Writer Pen, 0.8 Millimeter Cushion Ball Tip, Black Ink, 12 pens (R100-A)

Pentel Rolling Writer Pen, 0.8 Millimeter Cushion Ball Tip, Red Ink, Box of 12 (R100-B)

Description

🖋️ Write your success story with the original rollerball legend!

TRUSTED LEGACY - The original rollerball pen innovation backed by Pentel’s exclusive lifetime warranty.
ENDLESS CREATIVITY - Write over a mile with rich, vibrant blue ink that never smudges or bleeds.
PERFECT LINE WEIGHT - 0.8mm medium point delivers balanced, expressive strokes for all your notes and signatures.
EFFORTLESS PRECISION - Cushion Ball Tip™ technology ensures smooth, skip-free lines every time.
PROFESSIONAL PORTABILITY - Sleek blue barrel with a handy pocket clip keeps your pen ready wherever you go.

The Pentel Rolling Writer Rollerball Pen features a 0.8mm medium tip with Cushion Ball Tip™ technology for smooth, skip-free writing. Its large ink reservoir allows for over a mile of continuous writing in vibrant blue ink. Designed with a practical pocket clip and backed by Pentel’s exclusive lifetime warranty, this pen combines professional reliability with timeless innovation.

Specifications

Brand	ぺんてる
Model Number	R100-C
Color	blue
Pencil Lead Degree (Hardness)	default_no_selection_value。
Material Type	Plastic
Number of Items	1
Point Type	Medium
Line Size	0.8mm
Ink Color	Blue
Included Components	Ink Cartridge
Product Dimensions	15.24 x 8.13 x 3.05 cm; 136.08 g
Shredded Shape	Retractable
Application type	PENR100C, Pens & Pencils, Rollerball Pen, Writing & Correction, writing

Have a Question? See What Others Asked

Is it in Blue color?

Are these non-smudge when using with a straight edge or protractor? I draw custom geometric designs for book covers and I'm tired of smudges.

Has anyone found a solution to getting stuck ink to flow in these pens? Tapping them hard can work, but not always. Specifics appreciated. Thanks.

Hi, this is for a box of 12 pens, correct? Thank you!

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