"These opaque felt tip markers can write on a variety of surfaces including plastic, metal, wood, glass, plaster, canvas and more. Paint can be scraped off from nonporous surfaces like glass, etc. But will adhere Permanently to porous surfaces such as wood, paper, etc. Water-based pigment ink is non-toxic, lightfast and waterproof. The ink won't bleed through paper (unlike Alcohol-based markers) and is excellent for vibrant signs and craft work. Reversible Tips – Reversible bullet tips allow Posca markers to last twice as long as other markers; To reveal the other side of the tips, simply pull the bullet nib out to reveal one of two sides, from 1.8mm to 2.5mm Safety First – Posca markers are non-toxic, which means our pigment formula does NOT contain alcohol like other markers, each Posca marker is water-based which means it’s alcohol-free, waterproof, and still lightfast Crazy Versatile – Posca paint markers have been professionally tested and used on over 50 different surface types, which means you’re covered whether you’re using a canvas, fabric, acrylic, metal, surfboard, rocks, windshields, or anything else Creative Minded – Posca paint pens were designed for the creative minded, use our markers for decorating photos, glass writing, skateboarding, t-shirt designs, coloring potted plants, rock painting, embellishing caps, and more Obvious Choice – This 15 count Posca marker set was meticulously and thoughtfully designed and manufactured in Japan, making our markers the obvious choice for professionals, amateurs, and everyone in between Date First Available: March 15, 2012 Unit Count: 15.0 Count Number of Pieces: 15 Tip Type: metal Recommended Uses For Product: Coloring, Painting, Writing Size: 15 Count (Pack of 1) Global Trade Identification Number: 04902778154861, 09311513008744 ASIN: B001ANVDMU Material Type: Polycarbonate Product Dimensions: 4.9 x 2.8 x 4.7 inches Is Discontinued By Manufacturer: No Point Type: Medium Ink Color: Assorted Ink Base: Water Item Height: 4.7 inches Target Audience: Adult, College Students, Kid, Mothers, Parents Manufacturer: Uni Posca Style: Medium Tips Number of Items: 1 Marker Type: Paint Marker Special Feature: Blendable, Fade Resistant, Non Toxic, Water Resistant Pattern: Assorted Manufacturer recommended age: 18 years and up Body Shape: Round Color: Assorted Item model number: PC5M15C Manufacturer Part Number: PC5M15C Hand Orientation: Ambidextrous Material: Polycarbonate Is Waterproof: TRUE Surface Recommendation: Fabric, Metal Total Recycled Content Percentage: 41 Brand: posca Line Size: 0.9-1.3 Brand Name: posca Water Resistance Level: Waterproof Additional Features: Blendable, Fade Resistant, Non Toxic, Water Resistant Theme: Cartoon, Floral, Music, Rainbow, Superhero Item Weight: 100 Grams"