VEVOR AB Workout Machine Equipment Home Gym Core Abdominal Trainers AdjustableProduct Features Sculpt Your Abs This ab workout machine features an ergonomic dual curved sliding track, increasing effective sliding distance, leading to greater training intensity compared to conventional straight bars while reducing pressure on the back and neck. The fixed motion trajectory provides efficient training for the entire core area, including the upper abs, lower abs, and obliques. Safe and Stable Structure Maximum Weight Capacity: 440