Laying the Boulder Fit Doorway Trainer on the ground allows you to perform sit-ups, push-ups and tricep dips. In fact, the simple assembly, portability and removability of the trainer makes it ideal for anyone with space constraints because you don't have to have any hardware to remove it from the doorframe. As long as you have a standard doorframe, you can harness the power of the Stamina X Boulder Fit Doorway Trainer.
