Description Made of wood material, Addition And Subtraction Toy is durable and safe to use. You will like them very much. They can help promote abilities of color cognizance,eye-hand coordination, emotion communication, operation etc. Good educational toys. Features -Color:As Shown -Material:Wood -Size:30.00X30.00X0.50cm/11.79X11.79X0.20in - Wooden learning toy is an excellent teaching tool to develop hand-eye coordination. - Help learn mathematics, number learning cognition, play while learning, and entertaining. - This mathematical toy can help to develop their brain and hands,enhances color recognition, hand-eye coordination, math counting skills and cognitive levels. - You can play without risk of injury because all edges are smooth and there is no rough surface. - To learn knowledge while playing, promotes brain development, and improves interest in learning mathematics. Packing list1 x set of math learning toy