Product Detail Trampolines made with strong, rust-resistant galvanized iron steel tubing using patented T-Section construction Snug, secure fit of T-Section assembly ensures extra stability and prevents shifting over time W-shaped legs with eight balanced contact points add stability and prevent wobbling or tipping Trampoline (15-foot, 100-spring) is easy to assemble and requires no tools or extra drilling High-performance steel springs provide deeper, more exciting bounce. Includes limited two-year manufacturer's warranty Certified by independent laboratory to pass all ASTM safety requirements; 250-pound maximum weight capacity . The "Pure Fun 15-Foot Trampoline" is best product for you. We recommended Pure Fun 15-Foot Trampoline