twins cylinder details WE HAVE 3 TYPES OF CYLINDER BODY For Brass Diameter Column 24.6MM*Length 27MM WITH Column 24.6MM* Length 14MMColumn 24.6MM*Length 27MM WITH Trangle 29MM* Length 14MM WE HAVE 2 TYPES OF CYLINDER CORE For Brass CoreSOLID BRASS CORE WITH PROTRUDING HEADSOLID BRASS CORE WITH FLAT HEAD For KeysDoubleLine KeyNormal KeyComputer KeyBlade key Click here checking keys