Item Type: Number Dice Material: Plastic Gross Weight: 82g / 2.9oz Product Size: 1.6x1.6x1.6cm / 0.6x0.6x0.6in Applicable to: Board games and numeral teaching occasion1Education Through Entertainment: This dice turns numeral teaching into fun games, helps develop children's intelligence for early childhood education. 2With Clear Numbers: The text on the surface of the dice is number, and the numbers on the dice will not wear out and are durable. 320PCS: This table game polyhedral dice set is shipped with 20PCS, which can meet the needs of teaching use. Suitable for board games and numeral teaching. 4Selected Plastic: This six sided dice set is made of premium plastic material, which is durable and has long service life. And the round corner design won't hurt your hands. 5Small in Size: The dice cube is 16mm and it is small and lightweight so that it is easy to store. Helps with various math activities at home or at school. 20 xDice