Description: Non-slip AB Roller Automatic Rebound Abdominal Wheel Roller For Arm Waist Leg Exercise With Kneeling Pad Stretch Muscle Trainer Features: 1. Material: Made of durable ABS that can withstand even the most intense training sessions without damaging the floor. 2. The tank-type double wheels have strong stability: the double wheels can slide on any surface without slipping. Moreover, the texture of the widened flat rollers and anti-skid tires is stable enough to make sports more at ease. The two-wheel design provides more stability than a single-wheel design, which will help you perform a range of daily movements more easily and reduce the risk of injury. 3. Free sports knee pads: Knee pads provide maximum protection and comfort for your knees. 4. Charging arc top design makes exercise more comfortable: multi-layer materials, thickened load-bearing mechanism, three-point support, and slope unloading make exercise smoother and more comfortable. Silent noise reduction, automatic rebound, with mobile phone holder design, sports, listening to music and watching videos without delay. 5. Practicality: Exercise core muscles such as abdomen, waist, back, shoulders, arms and lower limbs, effectively exercise muscles and joints, and help overall exercise and weight loss. Specification: Exercise Type: Strength Training Function: Waist and Abdominal Exercise Type: Double Wheel Model: AB Wheel Product Material: ABS