6 months & up. These Soft Stack Baby Bricks are the perfect way to introduce infants to blocks. Infants can interact with these bricks in all kinds of ways because their soft outer material and firm, plastic construction make them both pleasant to hold and able to withstand the rigors of infantile sensory exploration. The bricks also connect to one another very easily, so infants may even build something while they play! Includes a zip bag for easy cleanup and storage. Set includes 28 blocks. Develops fine motor skills and manual dexterity Lays early foundations for spatial reasoning, an important STEM concept Single-pronged and double-pronged blocks Washable Ages 6 months and up