3 Pull-Up Grips for a Stronger Back : help you improve the effectiveness of back training. Optimal Support For Your Triceps Dip, Leg Raise : The ergonomic backrest helps you complete the tricep dip, leg raise easily. Non-slip Rubber Feet : The base uses a square tube and is equipped with eight non-slip rubber feet, effectively enhancing stability. Eco-Friendly Leather : The armrest pads and backrest are made of high-quality PU leather, offering comfort while being safe and environmentally friendly. Adjustable Knob : The backrest distance and pull-up bar height can be easily adjusted with a knob for effortless switching to your desired settings.