SIMPLIFY MATH: Dice set provides students in grades kindergarten and up with a hands-on tool for learning and reviewing math concepts. VERSATILE VISUAL TOOL: Use to write letters, numbers, numeral operations, and more. CUSTOMIZE FOR YOU: Create personalized manipulatives on the dry-erase sides of the foam dice. HIGH-QUALITY DEMO TOOL: Perfect for demonstrating shapes, colors, and sight words. Dice are made from quality material and colored blue, green, purple, and yellow. INCLUDES EVERYTHING YOU NEED: Set includes 4 write-on/wipe-off dice that measure 2".