Body-Solid SPR500 Half Rack Extension with Weight StorageThe SPR500HALFBACK includes four Olympic weight horns for plate storage, with enough space to add more if needed. The SPR500HALFBACK is also the ideal place to add more optional storage items without interfering with the function of the j cup liftoffs or safeties on the main SPR500 Half Rack. Add one, or a few SPRST storage trays for universal storage of kettlebells, medicine balls, bands and other accessories. Add the optional SPRPS pin and pipe