Add your own dice to these vibrant domes for quiet, controlled learning. Innovative classroom supplies, students can use their favorite dice (foam dice are ideal for extra quiet classroom games!) to create fun, educational games in centers or during study time. Give these Dice Domes a shake and keep your dice from diving off tables and creeping under chairs! Each dome includes a pop-out base with 3/4" hole for easy filling. Plastic. 4" x 2". Search for 13719325 Mini Foam Dice, sold separately.