Airzone 38-inch Mini Band Trampoline Features: Safe elastic band technology replaces conventional metal springs Woven polypropylene jump mat is the same material used on full-size trampolines Padded skirt covers the elastic bands and outer edge of frame Excellent for cardio fitness while being a low impact exercise designed to be easy on the joints Simple, rugged design with proven band technology for years of safe use Description: Bounce your way to fitness and fun on this durable, springless mini-trampoline. Using super-strong elasticized bands of webbing instead of potentially dangerous metal springs, this tramp provides a high intensity, low impact workout as well as a great indoor activity for rowdy kids. Standing at about 9 inches high by 38 inches round (slightly larger than conventional 36-inch jogger trampolines) it features a durable polypropylene jumping mat; a sewn-on, thickly padded stretch-band cover for its no-pinch springs; large rubber feet for stability; and a rust-resistant frame. This tramp is also completely collapsible for convenience and easy storage--always a welcome feature. Although the larger springless trampolines have been criticized for not being as bouncy as conventional metal-spring ones, safety is perhaps a greater consideration for a mini-trampoline such as this that will be used indoors. --Deb Oroszlan H x L x W: 31.0" x 5.0" x 20.0" Item weight: 13.0 pounds Shipping weight: 13.05 pounds