Ages 3 and up/ Grades PreK-K Perfect for color recognition, fine motor skills development and tactile discovery. All 20 multi-shaped, colored and sized geometric pegs fit in a hardwood base Base is 8-5/8"L x 7"W x 1"H Smallest pegs are 1"Dia. x 1-1/2"H PreK-K Core Standards MAT (P) Classify and sort objects by attributes.MAT (P) Describe and name shapes in the environment and identify their position.MAT (P) Recognize similar shapes when presented in different sizes.