Suprfit rubberized fitness bumper plates 50mm weight discs made of solid rubber granulate - Weight: 20kg, shock-absorbing weight plates 50mm for weight training, weight discs - Color: Black. The Suprfit Econ Bumper Plates offer quality and reliability at the best price. The Econ Bumper Plates have an IWF standard diameter of 450 mm. The stainless steel inner ring ensures better durability and has a diameter of 50.4 mm. This allows the Suprfit Econ Bumper Plates to be fitted onto any Olympic-standard barbell. The Suprfit Econ Bumper Plates are robust and resilient, able to withstand drops and weight drops. The bumper plates were developed in collaboration with demanding athletes, making them perfect for weightlifting, powerlifting, and intense training. They are a cost-effective alternative for your own garage gym, a box, or a large fitness studio.