Cam Pivit Sash Tilt Pivoting Cams, Right Handing and Left Handing (handed models) - Minimum Order of TWELVE (12) IS REQUIRED - Six (6) Each L/H and Six (6) Each R/H - Specify Plastic or Metal Style (zinc) in the "comment section" at checkout -- IF NONE SPECIFIED, WE WILL SHIP THE PLASTIC SETS.