Copic Sketch markers are designed for creative people! Known throughout the world for their high quality. Popular with comic and animation artists. Refillable, Inks with guaranteed color consistency. The double-ended sketch marker has a medium broad nib and a super brush nib. Excellent for all forms of illustration, design, and fine art. Oval shaped barrel, 358 colors available, with 3 nib options. One various ink can fill this marker about 12 times. Compatible with Copic Airbrush system.