Mega Cube Glass Bead Assortment - 4mm-8mm. With this assortment you get over 500 beads in each unit! With a variety of colors and sizes, you'll always have the bead you need to create wonderful pieces of jewelry and fashionable decorations. Our cube beads will give anything you create a classy look from jewelry, crafts and even scrapbooking. Glass. (Approximately 576 beads in each unit) Assortment may vary.