Combining abdominal muscle trainer/tablet support machine: scientific strength, automatic rebound, easy to use. Five layers of anti slip materials, sound insulation and wear resistance: anti slip layer, reinforcement layer, shock absorption layer, noise reduction layer, and support layer. Automatic rebound design : Our abdominal muscle wheels adopt automatic rebound technology, with intelligent assisted braking for automatic steel rebound, and a built-in braking system for smoother steel rebound. Dual wheel design: This fitness belly wheel has two wider front and rear wheels, which can achieve smooth rolling and better control. It can help you exercise every muscle and core area, while giving you more confidence in controlling your body, especially for beginners. Excellent workmanship: This rebound roller is made of sturdy and environmentally friendly plastic with a sponge handle, which is non slip, sweat absorbing, comfortable, fade resistant, durable, noise free or scratch resistant, and has a longer service life. Get 6 abs faster and safer: The amazing abs kit can help both men and women burn fat faster and shape your 6 abs! This roller is designed specifically to shape your body! This scooter is designed to regulate your body and mind, making you stronger, more confident, and radiant from the inside out no matter where you go.