Material: Products use quality wood, wood is grinded, smooth without burr, not hurt your baby's little hand, remember to not expose, alcohol and water is not availableProduct Name: International Edition add snake game, international subtraction snake game, the concept of 1-10 concepts and continuous decreases, strengthening exercises, further strengthening 10 less subtraction and 100 additional subtraction and subtraction memoryInternational preschool toys: Under the companionship of teaching, you can exercise your hand-eye coordination ability and three space cognition, and cultivate your baby's left and right brain development.Monsthetion Tack: often play add-to-measure snake game, you can prepare for the addition and subtraction operation, develop children's focus and independenceApplicable scenario: suitable for kindergarten, early education center, nursery, parent-child park, family early education and parenting institution, baby birthday gift, Christmas giftProduct Name: International Edition Add Snake Game, International Edition Slim Snake GameMaterial: wood, plasticColor: colorSuitable for age: children over 3 years oldAdd snake game weight: 1.2 kgSubcord Snake Game Weight: 1.5 kgAdd snake game size: 41 cm * 14.5 cmSlim Snake Size: 53 cm * 14.5 cm