About this item Precise Weight Accuracy: Factory calibrated to ensure exact weight for reliable progress tracking, weight plates making your training results more accurate and visible Built to Last: Made of high-density virgin rubber, the bumper plate can withstand drops and frequent use without cracking, providing a long service life Great Compatibility: Premium olympic bumper plates for 4-inch Olympic barbells, power racks, leg press equipment, make your training more professional Easy to Grip: The barbell plates with raised edges and clear weight markings make lifting and picking plates safer and faster Please note that multi-weight sets will ship in multiple boxes and may arrive on different days.