DescriptionFeatures:Brand new and high quality.Material: PP.Innovative design.Superior durability.Fits standard Olympic and Cross Fit Barbells.Single-action cam lock secures position on the bar.Able to withstand the toughest environment.Quantity: 1 Pair.Hole Diameter:50mmPackage Included:2 x Locking Collars Olympic Weightlifting Crossfit Fits Standard Barbells