This Roller Crunch Fitness Machine provides a workout solution for strengthening your midsection of your body. It designs bottom up workout function that is opposite from other abs crunch machine. In this way, it also works shoulders, back, arms and legs. It integrates contoured padded cushion for supporting arms and legs during workout. This machine can be used as a part of complete fitness routine or as an abdominal trainer. Feature: Achieve an exceptional ab tone thanks to this portable and easy-to-use exercise machine. XtremepowerUS Ab Rolling fitness helps keep your abdominal region in superb shape, while the adjustable seat allows for convenient exercises to get rid of love handles Perfect for beginners and long-time fitness enthusiasts alike; Curved track mimics natural spinal flexion, allowing anyone to perform an abdominal lift in perfect form Plate-loading resistance system, allows anyone from beginner to advanced to achieve great abs in the most effective way possible The features a multi-angle adjustable seat and plate-loading posts to add extra weights; Durable, long-lasting steel construction supports up to 300 lbs. Specifications: Color: Silver/Black Type: Resistance Training Features: Digital Workout Counter Repetition Counter: Yes Muscle Target: Upper Abs, Lower Abs and Side Obliques Max capacity: up to 300 Lbs Weight Plate Capacity: 30 lbs Overall Dimension: 49"(L) x 18"(W) x 51"(H) Assembly Required Yes Package Contents: Roller Crunch Fitness Machine Manual