About PRx Prime Bumper Plates PRx Prime Bumper Plates are solid rubber, low-bounce plates designed for controlled, safe training. They’re compatible with Olympic barbells and built to handle repeated drops while protecting your floors and equipment. Low-Bounce Solid Rubber Construction These plates keep lifts steady and minimize bar movement on drops. Their smooth finish also helps reduce noise during training. Low bounce for safety Gentle on floors Durable solid rubber build Wide Weight Selection Available in key weight increments so you can fine-tune your loads without constant plate changes. Multiple weight options Standard 2" Olympic collar opening Consistent competition sizing