Sturdy stamped Steel Construction with 6 ton capacity | High quality cast ductile iron ratchet bar | Double locks mechanism with both handle locks and mobility pin | Height adjustment mechanism allows smooth upward movement while release handle locks and mobility pin | Meets or exceeds ANSI/PALD standards. Ideal for home, Auto, truck service, farm, and shop use | Comes with 2 Adjustable Beam and a Single stand;It has both commercial and residential applications