1.The squat frame is made of high quality steel. The square steel tube design ensures stability during training. The structural design of the lock nut and triangular bracket makes the table robust and durable and provides maximum and a maximum load capacity of 330 pounds. 2.Tasteless, nonslip, wearresistant and environmentally friendly rubber covers the inside of the squat steel tube tightly and effectively reduces the impact of the dumbbell bar. Fully assembled, small footprint, easy to store and carry, practical for daily fitness training, very suitable for home use. 3.INNOVATIVE DESIGN Innovative multifunctional design with pullup bar and unique base (stronger base). Suitable for pressing, bench press, squats, standing, dipping and other rack movements etc. 4.With double coaxial springs to strengthen the abdominal and core muscles, Perfect provides aerobic and endurance training for the entire body muscles in one compact system.