Prevent unauthorized pouring of beer. Slide the lock onto your beer faucet, and then lock the faucet. Make sure you give the key to keg security. Will not fit stout type faucets. Snug fit is only required, do not over tighten *Please note: This faucet lock will not work with a Perlick Perl Flow Control draft beer faucet.*. In stock and ready to ship. Features: Fits standard beer and wine faucets. Made of heavy duty steel. No need for multiple keys, all locks are keyed alike. Replacement keys available. .