Adjustable height: Adjust the height according to your height and exercise intensity to suit yourself Two abdominal cushions with three adjustable widths to suit different abdominal populations, making fitness more comfortable Convenient knob for adjusting height with just one pull The mechanical design of triangles provides greater load-bearing capacity The 240 pound safe load-bearing design makes sports safer Seven level height adjustment, always able to find the one that suits your needs Multifunctional Roman Chair-This roman chair exercise equipment can integrate a variety of exercises in one, it works your back, core, waist, abdominal, arm, hip, and leg muscles. Perfect for home gyms, compact size saves space Height adjustable - This Roman extended seat has an adjustable 7-section backrest length, which can be adjusted to suit your height and exercise intensity, allowing for personalized sports and exercise Mid width adjustment of abdominal cushion in three levels - adjust the width between the two cushions according to the body shape of the exerciser's abdomen, making the exercise more comfortable A stable triangular structure provides greater load-bearing capacity; Anti scratch powder coating, soft and comfortable seat cushion and foot support, large U-shaped base to enhance its stability. The maximum weight is approximately 240 pounds Suitable for People- The back exercise machine features a 45-degree ergonomic design to ensure stability for men and women up to 6.2 feet tall, making it ideal for back workouts in your home gym Easy to assemble - using an English user manual and hardware package, equipped with assembly tools and wrenches for easy unboxing and assembly.