ABUS 78/50 2-Inch Locker Dial Combination Padlock, Silver Shackle made from hardened steel; Size: 50 mm, 78KC/50 (Key Control) 78KC: Master key opens more than 2,000 individual combinations (master key function by cylinder on the back of the lock) KTL-coating (black) for better corrosion protection High protection against manipulation; To secure valuables/goods of lesser value or at a low risk of theft Handy operation without key, e.g. lockers, cupboards, etc. in schools, companies, etc