Copic Sketch markers are excellent choices for designers, comic artists, hobbyists, calligraphers, and more. Each dual tip marker features a slanted chisel nib on one side, and a flexible super brush on the other. Nibs are replaceable and interchangeable. Smooth-flowing, low odor, alcohol-based ink is permanent, acid free, and easily blendable for multiple artistic effects. Ink barrels are refillable. Oval-shaped body keeps your markers from rolling away, and color coded caps make it super easy to find the marker you need!