Ulebbe Permanent Acrylic Paint Markers Set Art Permanent Markers for Canvas, DIY Glass, Rock, Ceramic, WoodNon toxic liquid marker pens. Each marker is filled with vibrant opaque colors made from high quality vibrant acrylic colors. Vivid, highly pigmented acrylic ink works well on any surface, create your stunning masterpieces on paper, canvas, wood, brick, stone, glass, metal, plastic, and fabric. Ideal for artists & art students, teenagers & adults. 3mm round tips that are accurate and easy to control; perfect for painting semi bold medium weight lines