The Cellerciser® Pro Tri-Fold rebounder trampoline with stability bar folds in thirds for easy storage and transport in its accompanying carrying case with built-in dolly. The Tri-Daptable® springs, space-age mat material, and ALL STEEL CONSTRUCTION provide superior strength, safety, and long-life durability. The Tri-Daptable® spring technology is patented and is exclusive to the Cellerciser®. The Tri-Daptable spring is the only self adjusting adaptive spring of its kind on the market. All Family members can use it! The included Streamlined Balance and Performance Bar attaches to the Cellerciser® for added support and faster results. The bar adjusts to 3 heights, and breaks down for storage or transport in the Cellerciser® case. The Tri-fold offers additional hinges to provide a unique bounce but both the 1/2 fold and the Tri-fold will provide the same results. Comes with a lifetime warranty on the frame, rubber feet, bullhorns, pins and 5 year on springs and mat (Just don’t let a UPS truck run over it!)