These blocks have been smoothed down to the of having no splinters. Their surfaces are easy to draw on, paint, or put glue on. They are perfectly safe for craft-making session in the classroom for teachers and students or simply as keepsakes for occasions. These acrylic cubes can be used to make alphabet blocks, numbers, or puzzle blocks, to mount , or simply paint with various colors to make eye-catching building blocks. Perfect for counting, measuring, learning letters and numbers, can be as teaching aids. It can also be used to make a unique game. These dices can be used for custom making, prototyping game , perfect for a wide of board game, games, games and educational games, for and Christmas party favor, etc. size:16mm Material:acrylic colour:White Package Contents: 48 x Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.