Arteza Gel Pens Ink Refills 60-Individual-Color-Bundle Acid-Free & Non-Toxic (0.8-1.0 mm Tips, Set of 60) Set of 60 refills includes: 7 Classic, 9 Pastel, 6 Rainbow (changes color as you draw), 6 Neon, 10 Metallic, 12 Glitter, and 10 Fluorescent Compatible with all Arteza Gel Pens 0.8 - 1.0mm ballpoint ideal for coloring books Acid-free and non-toxic ink doesnt smear, fade, or skip Easily create lines of color with minimal pressure