Welcome to our store! 1、Wide Application: The teaching dice set is suitable for classroom supplies, homeschooling, and math learning. It can also be used at parties or for playing with friends at home or at school with classmates indoors. 2、Compact Dice: The dice are 16mm in size. The compact size makes them convenient to carry. You can put them in your pocket or bag. 3、Easy to Read: The teaching dice are printed with clear symbols, including minus and plus signs for easy reading and easy identification of geometry. 4、Engraved Symbols: The mathematical symbols on the dice are engraved, and the symbols on the dice will not wear out and are durable. 5、Plastic Material: Made of premium plastic, the math operation dice are odorless, lightweight, and resistant to wear. It has a long service life. Item Type: Dice Set Material: Plastic Weight: Approx. 84g/2.96oz Size: 1.6x1.6x1.6cm/0.63x0.63x0.63in Application: Mathematics teaching 20 x Dice Customer Satisfaction - Customers are our top priority. If you find any problems with the product after receiving it, such as damage or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory customer service.