Guards against accidental firing of handguns, rifles and shotguns. Adjustable ratchet mechanism and self-adjusting pins fit guards up to 1" thick; completely prevents trigger from being pulled until lock is removed. Hefty metal construction. Cushioned pad protects finish. Fits almost all modern sporting arms. Positive locking pin and tumbler cylinder lock. Easy to attach, lock; easy to take off with key; impossible without it.