Essential Data Plate diameter: 450mm (IWF Standard is 450mm) Collar opening: 50.4mm** Insert type: Stainless Steel Weight tolerance: +/- 25 grams of claimed weight Coloring: B* (graded: A through F) Odor: Low Classification: Colored Economy Plate Material: Virgin Rubber and Rubber Additives Origin: China *The Pendlay Colored Econ Bumper Plates are a solid bumper plate for those who want colored plate identification for their gym. Plates can have minor color imperfections. There is a huge difference in costs to make a colored plate absolutely perfect versus allowing minor color imperfections. Anything outside of slight color imprefections in isolated areas is not allowed to ship. **MuscleDriver USA only guarantees that bumpers plates will fit properly on Pendlay Bars, York Bars, Rogue Bars and all IWF certified bars. Low end bars are not manufactured with strict tolerances for the collar diameter. Collar diameter for quality bars is in the range of 49.70mm-50mm. Pendlay Bars are an exact 50mm which conforms with IWF requirements.
