USA Sports 500LB Standard Olympic Weight Set Chrome Olympic Bar Features Maximum Weight Capacity: 600 lbs. These are Standard Cast Iron Olympic Plates with Durable Grey Enamel Finish / Raised Silver Numbers and Letters Allow for Fast, Easy Selection Plates Have Milled Edges for Comfort / Machine Bored Holes Protect Equipment as well as Facilitate Easier Plate Loading and Removal Weight Set Comes with One 7ft Chrome Olympic Bar / Sleeve Diameter: 2in / Two EZ-On Spring Collars to Hold Plates Securely on All 2in Bars