This Copic Sketch marker set includes alcohol-based, refillable dye markers with replaceable nibs for full versatility. Each marker has a flexible brush nib for blending and creating variable-width strokes, as well as a firm chisel nib for writing and sketching in broad strokes. Great for comic drawing, scrapbooking, fine art, illustration, product design, architecture, and more, this marker set is essential for artists, designers and crafters. The set colors include B41, B45, E34, E39, YG13, YG17. Details:Includes assorted colors6 packs (6 Copic Sketch markers per pack, 36 total markers)Dual tip (broad chisel and fine point nibs) Comes in a clear plastic caseEthanol-based inkPermanent and nontoxicRefillable