Features: Brand new and high quality Help kids learn math concept and basic operations with this set of 16mm teaching dices. Its very suitable for kids aged 3 and above, such as parent, teacher, and educational institutions. Perfect for math education, game, and interact learning in various occasion such as homes, schools, and educational institutions. Make with acrylic material for durability and easy cleanings, these dices feature number and symbol on each face for use. Enhances math skill and foster a loves for learning through engaging activity usings these multifunctional teaching dices. Watch as kids math abilities flourishes! Specifications: Material: Acrylic Color: White Package Weight: about.84g Size: about.16mm/0.63in Package Includes: 18Pcs Dices note: Please allow 1-2cm error due to manual measurement. Please make sures you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual colorful of the item. Thanks!