Master Lock 109DSPT Armored Cable Gun Lock, Keyed Different Tested by independent laboratory to stingent AB106 requirements 0.27-inch (6.6mm) diameter, 15-inch (38cm) long armored cable with brass ends prevents scratches, four pin tumbler cylinder and keyed different California-approved firearms safety device that meets the requirements of California Penal Code Section 12088 and the regulations issued there under Usable on revolvers, pistols, rifles and shotguns Deadbolt locking mechanism can only be opened and closed with key inserted and turned