45 Lb Bumper Plate Quality Rubber Crossfit Weight One 45 Lb. Rubber Bumper Plate. Great for Crossfit training, weight lifting workouts Outer Diameter: 450 mm. 17.72 inches ( IWF Standard). "2" Stainless Steel Insert 100% Solid Rubber Material, low odor. Quieter and Safer than cast iron plates 2.83" Thick to fit more plates on Olympic bar, compared to others. Low bounce Click to zoom in. Does not ship to Hawaii, Alaska, PO Box, APO