Lockout tagout lock is best used in settings when locks may be subjected to harsh conditions; Recommended use as part of a comprehensive OSHA compliant safety program Key lock features a laminated steel body and a hardened steel shackle for strength and security Dual ball bearing locking mechanism for maximum pry resistance 1-9/16 in. (40 mm) Wide lock body with 9/32 in. (7 mm) diameter shackle, 3/4 in. (19 mm) shackle length and 5/8 in. (16 mm) width Includes one laminated lockout tagout padlock with blue bumper, one key, Weight: 0.3 pounds, Manufacturer: Master Lock