Frame: Heavy Steel Frame with Rust-resistant Finish and Rubber Feet * Sleeves: 3/8" thick foam sleeves provide safety when kids are playing * Net: Enclosure is Made of Weather Proof and UV Resistant Material with Elastic Net Straps Sewn in * Pad: Durable Water-proof Pad Filled with Thick Foam, Reinforce Impact Protection * Mat: Heavy-duty, Fade Resistant Polypropylene Mesh Fabric Mat, Water-proof & UV-resistant