The Cellerciser® Bi-Fold folds in half for easy storage and transport in its accompanying carrying case. Its triple-tiered springs, durable mat material, and all-steel construction provide superior strength, safety, and life-long durability. Don’t be deceived by other companies claiming to have a Triple-tiered tapered spring design like the Cellerciser’s Tri-flex spring. Our spring design is patented and only available through Cellercise®. It is the only self adjusting adaptive spring of its kind on the market.
