OnGuard Doberman Series Locks. Features: Medium security with a heavy duty self coiling cable Uses the Dual lock mechanism and Dual LockDown protection Self coiling cables are available from 8mm-15mm diameter Tough vinyl covering protects against scratching All have multi-size/multi-position mounting bracket Keyed lock: includes (5) keys (1 with micro-light and 4 regular keys) Combo lock: features user resettable 4 digit combination Glo-Combo: has backlit combination tumblers for ease of use in the dark Specs: Model: Doberman combo lock Length: 72" Cable: 12mm