Belly regular work out. To add to your comfort, it offers a range of adjustable resistance levels. Thanks to its well-cushioned back support, you could enjoy rigorous abs workouts in much comfort and relaxation. Six Pack Fitness, Full Abdominal, crunch, and Sit-Up Exerciser - Lean Body Maximizer. Attached Cycle Workouts namely: cycling, oblique twists, crunches, reverse crunches, lower ab press, stretch, push-ups, lateral raise, arm lift sit-ups, etc. Allows 20 different types of workout, Perfect for those with back problems. ABS exerciser installation video: https://www.youtube.com/watch?v=NiIr8Yel3fE.