"DANGER FLAMMABLE MATERIALS SIGNS ON BOTH DOORS; EXPANDED METAL SIDES, BACK, AND DOOR FOR VENTILATION/VISABILITY; MAGNET KEEPS DOORS SHUT WHILE NOT LOCKED; DOORS HAVE PADLOCK HASPS; OSHA/NFPA COMPLIANT; ACCEPTS 9 CYLINDERS UP TO 59-3/4 INCHES VERTICALLY, AND 8 CYLINDERS UP TO 33-1/2 INCHES HORIZONTALLY"