SiliShapes Silicone Dot Numbers make learning to count fun. Dots represent the mathematical value of the number. In this way, the child comes to understand the meaning of each symbol. For example, zero has no dots, 1 has one, 2 has two, 3 has three and so on through 9 with nine dots. Sturdy yet soft and flexible, these green silicone numbers stand up to play on the floor and in sand or water. Clean with soapy water or in a dishwasher. Also ideal for use on Ultra Bright LED Light Panel. As a result, SiliShapes Silicone Dot Numbers are a must have for children with low vision. Pairs well with SiliShapes SiliconeTrace Alphabet.