[High quality material] All of our AB scooters are made of highly elastic material. [Twist / Waist Ab Wheel Roller] - the best abs roller - including extra thick yoga mat for a comfortable workout - top results - get the tight core and abs you've always wanted. These multifunctional abdominals at the waist offer more of a twisting function than the older versions. Helps you relax your abs and burn fat after vigorous exercise. [Upgrade Version]: This new design core and abdominal muscle roller has 2 non-slip rotating pads for waist exercise. The elastic plastic rope is more durable and has a large capacity. [Portable]: Simple installation steps, suitable for travel and made of lightweight and durable materials (only 0.5kg) for easy carrying in bags or luggage, mobile fitness equipment. [Over 40 different exercise positions]: Two-wheel abdominal muscle trainer made of ABS plastic. Product Building a range of abs just got a whole lot easier with this sit-up gear. Our features: 1. Ultra-wide wheel surface - provides stability when carving left, right or middle for targeted work on oblique work. 2. Excellent quality - the maximum user weight of the abdominal simulator is 272 kg. It is really solidly built. 3. Ergonomic Handles - The ergonomic handles are angled to activate the arms and core muscles. 4. 100% risk-free: product with 12 months warranty. Please don't hesitate to contact us if there is any problem with your purchase. Simple tip: With your knees on a soft, firm floor, roll the abdominal exerciser forward until your back is tense and straight. Next, roll the abdominal exerciser towards your body. Repeat the process again. This abdominal muscle trainer gives you a 360 shape. It lengthens your spine as you roll it in any direction and creates more muscle activity than normal crunches. Scope of delivery: 1 x AB wheel 1 x knee pads. 1 x instruction manual (possibly not in German).