Bottom is designed into T-shape to ensure its stability. This 8-in-1 multifunctional fitness trainer will provide core workout training to your body.  It is an ideal body trainer for sit-up back exercise push-up and flat support to greatly exercise your abdomen leg muscles and gluteus. With the load-bearing of 220 lbs this squat is sturdy durable and hard to deform or shake. Adjust the heights of the cylinders and mat with the knobs to meet the different people’s needs. Ergonomic leg cushion