Durable and high elasticity: Double spring design, more sturdy and durable, not easy to deform. The surface of the spring is smoother and the anti-rust ability is improved. The best choice for building muscle. Improved pedal design: Widened and elongated contour pedals to give you a comfortable exercise experience. Exercise of the abdomen, arm and torso: different exercise methods use different methods. It is very suitable for conditioning and strengthening the abdomen, waist, legs, arms, buttocks and thighs while exercising the abdominal muscles. Lose fat and shape your body: this Resistance training tool can exercise your arms, abdomen, shoulders, legs and buttocks. Using our belly fat reduction tool is not only a way to lose fat through exercise, but also a way to shape the body. Portable and lightweight , easy to store, can be used anytime, anywhere, even in the office. More durable and more comfortable. -Wide and slender pedals. Solid fixed pedal. Exercise your abdominal muscles, exercise your arms and chest muscles. content: Due to different displays, the product may have some color difference -1 double spring tensioner