LifeLine 260lb Rubber Bumper Plate SetThe Lifeline Rubber Bumper Plates meet IWF standards for length, weight and diameter. They are made with a rubber durometer of 90 Shore A, which means there is little to no bounce. They are easier to grip thanks to the recycled rubber casing and raised outer rim, these Olympic Rubber Bumper Plates make weight training much safer and quieter. They are perfect for a gym setting with lots of traffic or as cross training equipment for the home because the