Power System Phantom AB Wheel is made of strong, durable material to ensure it withstands even the most intense workout sessions. The ab wheel is made of strong stainless steel, non-slip rubber and durable PVC. The abs roller handles are made of comfortable EVA foam padding ensure safety and comfort. With its extra thick stainless-steel tube that can handle weights up to 150 kg, this ab roller feels extremely STURDY and incredibly WELL BUILT when rolling.