Playtime: Sort, count, nest, stack, knock over…. and repeat. Our long-lasting stacking cups are both durable and do enough that they can be used from newborn stage through the preschool years. Mealtime: With solid bottoms and made from FDA food-safe silicone, each cup can be used as a food container. Perfect for snacks, dipping, and keeping food separate! Water Fun: Fill, spill and bubble it up. Happy Stacks are made for water play. In the bath, pool, or ocean, they can handle the fun. Size: 2.75" x 2.85" x 2.85" (nested) Recommended Age: 0 months+