10 months & up. This set of Stackable Rainbow Wooden Stars are ideal for loose parts play, or as an addition to sensory play centers. Help children foster problem solving, critical thinking, color identification, counting, sorting and stacking skills with these colorful, chunky shapes. Made of sustainably cultivated European beechwood, set of 21 stars come in 3 different sizes, various thicknesses, and 7 different colors. Rainbow Wooden Stars enhance fine motor skills as children count, sort, roll and stack them. Stars are stained with muted non-toxic paint that displays the wood's natural grain, and are smooth and splinter-free. Set includes 21 stars and cloth bag for easy pickup and storage. Largest stars measure 2.5".