The Body-Solid Pro Clubline SPRBSA Belt Squat Attachment allows users to squat heavy without putting compression stress on the back and shoulders. Save money and floor space by adding this attachment to a rack instead of purchasing a standalone belt squat machine. The SPRBSA easily attaches to the uprights of Body-Solid's SPR1000 Power Rack and SPR500 Half Rack. The SPRBSA features 15.25" weight horns designed to fit Olympic weight plates and has a robust weight capacity of 1000 lbs.