Copic Sketch markers are double-ended refillable markers with fast-drying, permanent non-toxic ink. The Sketch marker features a super brush nib on one end and a medium broad nib on the other end of the oval shaped barrel marker. Replaceable nib with 3 options. This set of 6 Floral Favorites #2 colors includes: B63, B66, RV23, RV25, RV29, and YR21.