The ab wheel is made of strong stainless steel, non-slip rubber and durable PVC to ensure it withstands even the most intense workout sessions. And the exercise wheel’s handles are made of comfortable EVA foam padding ensure safety and comfort.The workout roller features a textured non-slip ab roller wheel that grips any floor surface firmly. This home workout equipment comes with a supportive knee pad to effectively protect you from any injury due to falling.With its uniquely designed slightly rounded ab roller and the width of 2 inches (around 5cm), the ab wheel takes your balance and dynamic stability to the next level, and is perfect for more advanced ab workouts for a rock-solid core. This ab roller acts as your personal fitness trainer - helping you to build stronger and bigger six pack abs, burn calories, build muscle and improve your overall endurance. Strengthens & tones abdominal, shoulders, arms and back, it’s simple and effective for core strength！The ab roller wheel comes partially assembled, so all you need is to install the handles and you are all set! Easy and handy. It is recommended that you wet the steel pipe or smear soapy water on the steel pipe before installing the handle to ensure that you can install it more easily. Contact us any time if you have any question(s) regarding the assembly or use of the ab wheel.If you want to save money on a gym membership or need to fit in a fast workout, our ab work out equipment is the ideal gym equipment for home! The non-slip rubber wheel roller securely grips any floor type, and the handles have soft padding for total comfort. It is the perfect training equipment for your home gym!