Sturdy Ab roller wheel: The core sliders of our abs roller wheel is made of strong stainless steel, the handle is made of non slip TPR and durable PVC, in addition, this material will not damage your carpet or hardwood floor or concrete. The upgraded wheel roller could hold body weight up to 440lbs which could keep your safe during abs training. Ultra wide Ab wheel base: The width of the abdomen wheel is 9CM and the wheel diameter is 30CM, this design could ensure your balance and stability, as it does not deviate from left to right. This ultra-wide base design could make our ab roller withstand high-intensity exercise, you could adopt high difficulty positions to strengthen your abdominal muscles. Gift for Fitness Enthusiasts: Our ab roller is easy to put together and use. Hence, you could use it at home, you could also take it to a gym as it portable. Our ab roller is designed to train your entire core (abs, gluten, lower back muscles, and obliques) as a unit. Our ab roller wheel kit is a idea healthy gift for Christmas, New Year, Thanksgiving day, etc.