Copic Markers are versatile double-ended refillable Markers with fast-drying, permanent non-toxic ink. The Sketch Marker features a comfortable oval barrel with a super brush nib on one end that is perfect for doing professional illustration, fashion design, Manga, and adding detail to your images. The Sketch super brush nib acts like a paintbrush both in feel and color application. For more control, use the medium broad nib on the opposite end of the Marker. Both nibs are replaceable.