For many inversion benches, a user must temporarily lock their ankles into the bench prior to inversion. If the ankles are not properly locked into the bench, the user can slide or fall out of the bench and cause injury. The safety key provides a clear visual indication that the key has been properly inserted regardless of the viewing angle before inversion of the bench begins. The safety key identifies improper insertion and include a spring loaded pin and inner shaft that engages into aligned locating holes in the inversions bench. The safety pin has two wings that fold, extend or tip from the body of key. In addition to the visual appearance, a user who is completely blind can also feel the sides to the key to determine if the key has been properly inserted into the inversion bench.
