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. Manufacturered by hand2mind. 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". SIMPLIFY MATH: Dice set provides students in grades kindergarten and up with a hands-on tool for learning and reviewing math concepts. REINFORCE MATH AT HOME: Helps parents reinforce math concepts at home through hands-on learning. LEARNING BY DOING WORKS: Students in activity-based programs perform up to 20% higher than groups using traditional or textbook approaches. GROWING MINDS WITH HANDS-ON LEARNING: For over 50 years hand2mind has encouraged hands-on learning and discovery driving deeper understanding and helping students unlock their full potential.