The "100G" padlock is a laminated steel, 1-3/4" wide padlock with a 5/16" diameter, hardened steel shackle. It comes standard with a 5-pin cylinder and dual locking balls. This padlock is the workhorse for the military because of its durability and affordability. These locks have a variety of options to include a chain, keyed alike, master keyed, or extra length shackle. Our small, family business employs disabled workers to manufacture these "U.S. Made End Products." The other supplier of these locks has them coming out of Mexico. Support a family business that supports disabled workers and US manufacturing ~ buy PACLOCK!