For use with GIOT or GLP. Turn your Gym attachments into freestanding selectorized machines. Body-Solid built these weigh stacks to provide a lifetime of reliability and maintenance-free service. All plates are cast oversized, then precision milled on both sides to exacting tolerances. Cast from ASTM-grade 20, this is the highest quality iron casting available. Includes weight plates, selector and guide rods, frame and connecting hardware.