Description The dice is made from good material for long time and durable use. The math plus or minus sign dice toy is a very creative and funny learning prop, which can bring more laughter to your child. It also can be a good gift choice for your friends and kids, they will like it very much. Features -Color:Black -Material:Acrylic - Size: 1.60X1.60X1.60cm/0.63X0.63X0.63in -The diceis not only a dice game prop, but also can be used as an educational toy for your children. - The dice are designed with rounded corners and smooth edges.The diceis very safe to use. - Comfortable feel, fit for the comfort of the player's grasp of dice, to prevent side and corner scratch. - Durable for long lasting use, fall resistance. The dice also can be used for a long time. - Develop children's interest in math through play. The dice is a very important math learning tool. Package list: 12 x Dices