Vestil Double Drum Locks, models DDL-55-AL, DDL-55-BRS and DDL-55-P, are designed to keep the contents of double bung 55 gallon drums safe and secure. Available in aluminum, brass or plastic, double drum locks are simple to use. Simply tighten the cylinder lockouts and position correctly, then insert the rod through the port holes of both cylinders. A pre-drilled hole in the rod enables locking with a padlock (not included), thus preventing the bung seals from being unscrewed. DDL-55 double drum locks secure both 2" and ¾" dia. bung openings with flanges. The locking arm is made from steel, while the drum caps are made from aluminum, brass or plastic, depending on the model. Overall length is 23⅝"; maximum length between bungs is 19".