Specifications:This is a good toy for children learning basic math.Improving children's cognitive ability, train the ability of the child's hands and brain, develop their thinking and practice operating skillsand hand-eye coordination ability.Help children to learn math more funny and easy.Type: ToyMaterial: PlasticSuitable for: School, Home, Gift, Nursery, etc: Colorful, Education Toy, Magic Cube, Funny ToyHeight: 7cm/2.76", Diameter: 5.5cm/2.17" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.