• wood
• cognitive -- can play rest assured, there is no burrs or acute edges, it is practical an safe, early educational tool
• plaything--help learn mathematics, life cognition, play while learning, very entertaining,math calculating
• Wooden --there are four topics for to learn the best activity kit for preschoolers,wooden plaything
• Arithmetic math -- , smooth edges and corners, it's safe without burrs, can use with peace of mind,intelligence development
• Mathematics cognitive --this mathematical can help to develop their brain and hands, let color cognitive and number ability,funny