18 months & up. Encourage loose parts exploration, numeracy and scale activities, and sensory play using this set of coconut-inspired Counting Bowls. Made in part using durable Poly+, these bowls are perfect companions for indoor and outdoor adventures, nature collections, and sand and water play. Each bowl features a molded number and corresponding holes for sifting, water exploration, and number recognition. Largest bowl measures 9.8"L x 9.8"W x 4.25"H. Smallest bowl measures 3.5"L x 3.5"W x 2.7"H.