NUOLUX Set of Kids Educational Wooden Building Block Toddler Toys Material:High quality wood Size: 14.2*14.2*12.2CM Application: Children above 18 months (Must have adult supervision) Open the intelligence box and take all the building blocks of various shapes out, teach babykid to know different colors and shapes. Let the kid embedd the building blocks of various shape to the corresponding position. By this way, the children Learns to distinguish between shapes and colors through coordinated eye and hand movements. Kids' observe ability is improved!