4-Piece Climb and Crawl Foam Block Play Set for Infant Baby for Toddlers & KidsKey Features CAN BE FORMED: Into different shapes for creative play EASY CONNECTION: With a 2. 5 inch detachable hook and a 1 inch sewn in loop PROVIDES SUPERIOR CUSHIONING: For children to climb crawl and slide COMPLIES WITH ASTM: And CPSIA so that children can play with confidence WIDE APPLICATION: For home daycare and more FREE SHIPPING ON $100+: Free delivery across the continental US on orders over $100 Trusted by 200,000+ parents. MoogCo Baby