Help your little climber develop their gross motor skills through active play. The climb and crawl activity play set tumbling blocks by Play22 have non-slip bottoms and stop them from sliding around. With this fun foam activity play set your child will have hours of safe fun. The shapes are large, lightweight, stackable, waterproof, and easy to clean. This set will let you create an unlimited combination of structures because it allows you to arrange them in different ways. Babies will have a grand time with these soft play climbing toys for toddlers. The baby climbing toys are soft and dense with tightly sewn seams to prevent tears. Play equipment meets all Usa safety requirements. There are no hard surfaces or sharp corners that can hurt your kids while they play with this toddler playset.