Adjustable Foldable Ab Trainer Machine — Single-Track Home Ab Workout Equipment with Knee Protection, 4-Level Height and 120° Curved Track

- Guided Single-Track Motion: One fixed rail synchronizes both legs for stable guided crunches, removing balance demands so you can fully focus on abdominal engagement. - Heavy-Duty Steel Frame (440 lb Capacity): Triangular dual-rail steel construction supports up to 440 lbs, staying rigid during rapid alternating crunches and intense HIIT without flexing or tipping. - Adjustable Height & 120° Curved Track: Four pin-adjustable height settings and a 120° curved track recreate a natural crunch arc while easing neck and lower-back strain during advanced core work. - Thick Knee & Elbow Padding: Two-inch high-density foam cushions protect knees and elbows for comfortable, joint-friendly extended sessions. - Foldable Design with Built-In LCD Tracker: Folds flat in about 10 seconds for compact storage under a bed or sofa; integrated LCD displays s, time, and calories to track progress.