Just Say No to Vanity Plates You’re not here for status. You’re not here to show off. You’re not here to be cool. You’re not here to look good. You’re here to work. You’re here to sweat. You’re here to get strong. You’re here for the discipline. You’re here because of the fierce durability that’s the hallmark of Fringe Sport bumpers, you’ve come to know and expect. You’re here for the level of Fringe Sport toughness that matches you and your workouts. To be the best, lift with the best competition plate out there. You're on the lifting platform, hands chalked, expectant eyes riveted on you, knowing you'll deliver your next PR with these beauties on the bar and... IWF diameter standard. 450 mm with a tolerance of +/- 1 mm Weighed and guaranteed accurate to +/- 1 % of declared weight. Durometer rating of 90 ShA. Our plates feel just right with a dead bounce. 7.75" steel insert width. Makes drops a non-issue with max toughness. 50.4mm collar opening. Fits most Olympic barbells Material: Virgin rubber with Zinc coated Steel Inserts Width/Thickness: 10 kg Green- 32mm/1.25"; 15 kg Yellow- 44mm/1.70"; 20 kg Blue- 55mm/2.15"; 25 kg Red- 66mm/2.55" Full Diameter: 17.625 inches/450mm Insert Diameter: 7.75 inches/197mm (steel insert plate), 1.98 inches/50mm (collar opening) All sizes listed; each set only comes with 2 bumper plates of that specific weight.