General description This set includes 4 round security padlocks, each with a unique key, enhancing security for various applications. Designed for both indoor and outdoor use, these padlocks are ideal for public lockers, storage units, garages, sheds, trailers, and moving trucks. Technical specifications Lock body width: 2-3/4 inches Shackle diameter: 3/8 inch Shackle length: 5/8 inch Shackle width: 3/4 inch Other information Made of stainless steel and chrome plated hardened steel, these padlocks are rust and corrosion resistant.