The Doodle Kits and Packs feature a collection of color-coordinated Ciao Markers and COPIC Multiliners giving artists a rainbow of colors and pens for fine detail work. Ciao Markers are versatile double-ended refillable markers with fast-drying, permanent and non-toxic ink. COPIC Multiliners are permanent, waterproof pigment pens that will not bleed into COPIC Markers.