An ideal toy for every stage of development, children will love to stack, sort and teethe these pieces. Made with super soft platinum food grade silicone, pieces are BPA-free, PVC-free; latex-free; phthalate-free and 100% safe. Great for sensory play, water play and free play. Includes 6 children & 6 houses. Pieces are approximately 4". 1-2 years: The soft material allows them to be safely kicked, thrown and chewed on during these active play years. 3 years: Children learn to classify by shape and colors. 4-5 years: The combination of figures encourages a child's dexterity and concentration by constructing increasingly more complex structures. The toys multiple combination possibilities stimulate creativity and imagination. 6 years: With this set, you can bake as a family. They are fantastic molds for baking cakes and cookies, and they can be washed in the dishwasher!