I assume you're wanting to know the width of line it can create. -- It Depends on how you use it and on what material... The BIC "marker" simply states "ultra fine point". (It is not a ball point.) (The small tip does a good job of resisting deforming/squishing with normal pressure) I measured the diameter of the "wick" at the tip of pen at ~0.85mm, but that then rounds off at the end where it would touch a surface. A drawn line width would depend on the material: plastic, paper (lots of types of paper), etc... (how much ink is absorbed or deposited and how fast.) I took a "post-it note" paper and drew some "test" lines: [(using a metal ruler, with the ruler edge itself not touching the paper(thin cork spacer underneath the ruler)] -A "slow" drawn line lets more ink get absorbed into the paper, and the line is thicker and darker: (~0.5mm) line. - A very "fast" drawn line (the thinnest/lightest I could make it, and still have it all appear the same consistency)- I measured with digital caliper at ~0.35mm thickness. - If I let the tip rest a moment on the paper at either the start or end of a line, then it will of course leave a larger "dot" at that point, due to more ink soaking into the paper. I didn't test it on other substances. I measured by shining a bright light from underneath through the paper (to make the line easy to see with no shadows), and measured the line thickness best as I could with digital caliper on top of paper. note: The pen doesn't have a longer straight metal guide for the tip "wick" to feed through. (gotta be a technical term for that, but wick will suffice) If it needs to follow a thin template slot, the plastic guide just above the tip holding the wick, I measured at ~1.2mm thick, and it's ~1.6mm long including to the end of the tip itself. (so a template would need a slot >1.2mm wide, and less than ~1.6mm thick for the pen tip to reach the surface.) -- but most of that type of drawing is now done with computer/drafting etc. programs, so no finesse required in this respect. ++ Hope that helps.

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BIC Intensity Black Permanent Markers, Ultra Fine Point, 12-Count Pack of Black Markers With Non-Slip Grip for Comfort and Control

BIC Intensity Black Permanent Markers, Ultra Fine Point, 12-Count Pack of Black Markers With Non-Slip Grip for Comfort and Control

Q: can you write on a canvas print with this?

Although I've never written specifically on a canvas print, I don't doubt that it would write well. My disappointment with this pen was that it was marked "fine point" and I expect that to be a pretty fine line. However, my "fine points" are well into the "medium" group as far as I'm concerned. So, it depends on what width of line you're looking for, but don't expect the "Fine" to be anything but "fine." They would show up conspicuously on a canvas print in my opinion.

Q: Will these work on Rite in the Rain paper?'

I don't know what Rite in the Rain Paper is, but it will not smear if that helps.

Q: Can they be used for fabrics?

This is what I found out: Tips. When using permanent marker on fabric, opt for a 100% natural fiber fabric, such as cotton or linen. Natural fibers absorb the ink better than synthetic fibers, such as polyester. Also, in addition to permanent markers, fabric markers are a good choice because they're designed to hold up to many washings.

Product ID: 9543787

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Details

Brand
BIC
Ink Color
Black
Number of Items
1
Point Type
Fine
Recommended Uses For Product
Glass Plastic

✋soft non-slip grip for control

🖊️0.3mm ultra-fine precision

🛡️vapor seal snap cap for no dry-out

Frequently Bought Together

Description

🖤 Mark your mark with precision and confidence!

COMFORT MEETS CONTROL - Ergonomic non-slip rubber grip designed for extended use without hand fatigue—work smarter, not harder.
STAY SHARP STAY READY - Innovative vapor seal snap cap locks in ink freshness, preventing marker dry-out and ensuring longevity.
BOLD SMUDGE FREE IMPACT - Quick-drying, acid-free black ink creates vibrant, permanent marks on multiple surfaces—glass, metal, plastic, and more.
PACK POWER FOR PRODUCTIVITY - 12-count bulk pack keeps your creative and professional projects fully stocked—never run out mid-idea.
PINPOINT PRECISION EVERY TIME - Ultra-fine 0.3mm tip delivers crisp, detailed lines for professional-grade writing and drawing.

BIC Intensity Black Permanent Markers feature ultra-fine 0.3mm tips for detailed, precise lines, combined with a vapor seal snap cap that prevents drying out. The soft, contoured non-slip grip ensures comfortable handling during extended use. These quick-drying, acid-free markers deliver bold, permanent black ink suitable for various surfaces, making them ideal for professional, creative, and everyday tasks. Available in a convenient 12-pack to keep you prepared and productive.

Specifications

Manufacturer	BIC Corporation
Brand	BIC
Item Weight	3.36 ounces
Product Dimensions	1.44 x 5.5 x 2.75 inches
Item model number	GPMU11-BLACK
Is Discontinued By Manufacturer	No
Color	Ultra Fine Tip Black Ink Markers
Grip Type	Contoured
Material Type	Rubber
Number of Items	1
Size	12 Count (Pack of 1)
Point Type	Fine
Line Size	0.3mm
Ink Color	Black
Tip Type	Ultra Fine
Manufacturer Part Number	GPMU11-BLK

Have a Question? See What Others Asked

Are these 0.4mm?

can you write on a canvas print with this?

Will these work on Rite in the Rain paper?'

Can they be used for fabrics?

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