1---Practical Two-wheel Design: The two-wheel can prevent the wheel from slipping in a smooth motion, and the automatic rebound function can protect you from injury in motion.is convenient to use. 2---Help Rebound Movement: Your workout will be more effective. The abdominal wheel ab roller has a power assist spring! This feature helps increase pushout resistance and helps the wheel roll back. 3---High-quality Material: Roller wheel for abdominal exercise is made of high-quality multi-layer composite materials to ensure excellent anti-skid, the bearing roller is not only flexible and quiet. Balance your comfort with an effective workout. 4---Lightweight And Detachable: Our absolute wheel ab roller is soft and eco-friendly after many uses. The handle of this abdominal fitness roller is Detachable, making it more convenient for you to carry. 5---Idea Gift: Our abdominal rollers help to exercise muscles and effectively shape the abdomen, waist, back, shoulders, and arms. A great gift for your love, family, friends, or yourself on any holiday. Features: Material: ABS+TPU Product size: 37*35*10cm Kneeling pad size: 23.5*16.5*0.5CM (black) Colour: Orange, Grey, Red, Blue Weight: 1468g