The SOLE SW106 Weight Plate set is designed for Olympic-sized bars and have a solid center sleeve. They offer exact contact between the plate and the bar. The plates have premium rubber-coating for security and floor protection during dropping. Full weight sets including 2X 2.5, 5, 10, 25, 35, and 45 lbs. plates. These Weight plates come in sets of two and work perfectly with the Sole SW111 Olympic-sized bar and are made for daily use in your home gym.