Lightweight, heavy-duty, white plastic for durability and long-lasting use. Excellent for a variety of media including acrylics, washable paints, tempera and watercolors. Solvent-resistant and easy to clean. A terrific way to sort small beads, findings, glitter and other small craft items. Features six 3" wide wells that are each 7/8" deep. Stackable. 7-1/8 x 10-7/8".