IRIS Fitness Ab Roller is an ideal abdominal muscle trainer for both beginners and advanced users. The exercises are effective and straightforward and the Ab Wheel comes for performing the principal core-strengthening exercises. The effects on your core can already be felt after your first training and can clearly be seen after two weeks of regular training. The IRIS Ab Roller focuses on training your trunk muscles in multiple directions. When rolling back and forth, the trunk muscles work against the counter forces that are working to arch your lower back. The abdominal muscles are thereby stretched but maintain tension, which challenges your six-pack muscles, deep abdominal muscles and stabilizing muscles and is what makes the training so effective. In addition, muscles of the hip, shoulder, triceps and the broad part of your back are also worked when rolling forward, and these muscles are working effectively to stabilise your body from shoulder to coccyx. Portable, lightweight, and travel friendly, this ab roller is designed for quick disassembly and great for travel and on the go workouts. Our handles are padded with anti-slip comfort foam for a custom fit that won't exhaust your hands. The ab roller comes with a center spacer that gives you the option to spread out the two wheels for additional stability. Few exercise machines can make abdominal muscles burn as effectively as an Ab Roller. The Ab Roller trains your abdominal, shoulder, back and arm muscles effectively in very little time. With the Ab Wheel Abdominal Muscle Trainer you can train virtually anywhere at home, in the office or in the gym. Specifications: Material: PVC Plastic, High Quality Sponge, Galvanized Steel Frame. Size: 32 x 14.5 cm. Thickness of the steel pipe: 2 mm. Length of the steel pipe: 24.5 cm. Diameter of the rolling wheel: 14.5 cm. Size of the fixing ring: 3 cm. Max. loading capacity: 130 kg. Package Contents: 1 x AB Roller, 1 x Kneeling Pad.