Material and Construction: The frame is made of sturdy metal materials such as steel pipes to ensure stability and load-bearing capacity, and can withstand large weights without deformation. The seat and backrest are usually made of soft and thick materials such as sponge, covered with wear-resistant and easy to clean leather to provide comfortable support- Exercising chest muscles: It is a commonly used equipment for upward sloping dumbbell press, upward sloping bell press and other movements, which can focus on stimulating the upper bundle of the pectoral muscles, making the chest muscle lines more three-dimensional and full. Strengthening the shoulders: When practicing exercises such as upward sloping dumbbell pressing, it can effectively exercise the anterior and middle deltoid muscles, enhancing the strength and dimension of the shoulders. Assisting other training: It can also be used for some auxiliary training movements, such as using an upward sloping training chair to roll the abdomen, which can better exercise the upper part of the rectus abdominis muscle.