Wooden Addition and subtraction within 10 Toys

This mathematics toy set is made with quality wood, which is non-toxic, eco-friendly and safe for your kids to enjoy the playing time.   Slide the ruler to select the number in the frame, let the baby observe the middle number combination, it can exercise their thinking ability and computing ability. The calculation sticks presented in the set have bright colors that can attract the baby's attention. The two can be combined to learn mathematical operations. The intelligence toy set with beautiful appearance is excellent props for preschool education, suitable for kids above 3 years old. The wooden toy set has delicate craftsmanship and smooth surface which can effectively protect the baby's hands from scratches. SPECIFICATIONS:Gender: UnisexAge Range: > 3 years oldMaterial: WoodWarning: keep dryFeatures: EducationalApproved ASTM and CE testing. Made of 100% Real Wood, Non-Toxic, Environment-friendly, Safe for Kids. Meets all specifications of European (EN-71) and American (ASTM) Toy Safety Standards.