OneFitWonder 160 Lbs Bumper Plates Set/Virgin Rubber, Low Bounce, Odorless Premium Olympic Weight Plates for Crossfit Training/Weight Lifting/Home Gym Sold in Pair of 10 lbs,25 lbs,45 lbs 160lb Set Includes: 10lb, 25lb, and 45lb Pairs. Thinner than many of the competing bumpers- so you can load more weight on your bar! OneFitWonder bumpers use a rubber formulation that combines the ideal mix of low bounce with high durability. Virgin Rubber for high durability plus stainless steel "hooked" insert. Fits Olympic barbells with 2" shaft diameter. Weight Tolerance +/- 1% of declared weight <span class="a-text-bold">Full Diameter: </span>445mm (17.5 in) <span class="a-text-bold">Thickness: </span>1.05 inches <span class="a-text-bold">Durometer:</span> 90 sHA <span class="a-text-bold">Full Diameter: </span>450mm (~17.7 in) <span class="a-text-bold">Thickness: </span>1.87inches <span class="a-text-bold">Durometer:</span> 85 sHA <span class="a-text-bold">Full Diameter: </span>450mm (~17.7in) <span class="a-text-bold">Thickness: </span>2.9 inches <span class="a-text-bold">Durometer:</span> 85 sHA