Alytimes Colourful Montessori Teaching Tool Math Number Wood Board Preschool Toy Kid This allows your baby to add, Subtract, multiply and divide. Let your baby learn basic computing method. Material: Wood+ plastic Size: about 17.32 x 5.51 x 0.59 inch Color: as in picture Quantity: 1 set . Type: Toys Kids Safety and environmental protection, toys are made of high quality wood, color paint are non-toxic, harmless, pollution-free green paint; Fine workmanship, but where the corners or sharp are rigorous grinding treatment, high safety factor. Development of intelligence, educational significance, each toy has given its profound educational philosophy. 1, the child in the focus on playing the game when the exercise of his focus. 2, the child in the hands of the sensitive period of touch, please note that the child&#039;s right and left hand while training. This allows your baby to add, Subtract, multiply and divide. Let your baby learn basic computing method. Training baby in mathematics. Let the baby learn in the game. Hand to eye coordination. Suit for children over 3 years. Material: Wood+ plastic Size: 17.32&#034;x 5.51&#034; x 0.9&#034;