This ab trainer features an ergonomic hyperboloid sliding track. The fixed movement trajectory ensures efficient and targeted training of the entire core area, including the upper abs, lower abs, and obliques, helping you sculpt a toned waist and abdomen with precise, controlled movements, maximizing muscle activation. The trainer boasts a high-strength carbon steel structure, with a stable triangular frame capable of supporting up to 440 pounds (approximately 200 kg). Thick, soft knee pads and foam-wrapped handles stabilize your posture with each repetition, reducing knee friction and providing comfortable support. Quiet, smooth rollers beneath the knee pads allow for effortless gliding. The convenient foldable design makes it easy to store in small spaces, while the built-in, easy-to-read counter automatically tracks your repetitions, eliminating the mental burden of counting and helping you maintain proper posture throughout your workout. | Htutwoo | | AB Workout Machine | Home Gym Core Abdominal Trainers, Adjustable Exercise Equipment, Full Body Strength Training | Black | Best Buy