These racks were specifically designed to keep your Spectrum Noir pens inked up and ready to use. They hold the pens horizontally so both the fine and broad nibs are juicy with ink for all your coloring jobs. Each rack holds 12 pens and the racks can be stacked vertically, horizontally, or angled to make it easy to grab individual pens. Altogether, this set of racks from Crafter's Companion holds 168 pens (not included)-that's all twelve 6-pen sets and the four 24-pen sets combined! Each single rack measures 9½"x5½"x1" and the individual slots are ¾" wide. (Don't have all the pens? You can also store other similarly sized items, such as tubes of beads, Smooch Spritz, smaller drawing pens, and more!) Best of all, you'll love the convenience of having all your pens within easy reach and juicy with ink