HighlightsSculpt Your Abs - This ab workout machine offers a fixed motion trajectory for efficient training of your entire core area, including the upper abs, lower abs, and obliques. The ergonomic design reduces pressure on the back and neck, making it more beginner-friendly.Safe and Stable Structure - Maximum Weight Capacity - 330 lbs / 150 kg. The stable triangular structure core & abdominal trainers is built with heavy-duty carbon steel. It features a fully enveloping U-shaped foam knee pad