The faucet lock keeps the kids and neighbors from stealing your beer! Also great for commercial use. Attaches over the faucet. Key lock. Comes with one key. Note: faucet locks are all keyed the same. NOTE: Only fits standard US draft faucets like our model DFT500. Faucet lock will not fit the European specialty stout faucets, Perlick seat forward faucets or European style faucets. Body is made out of heavy duty aluminum casting. ONLY A SNUG FIT IS REQUIRED, DO NOT OVER TIGHTEN. In stock and ready to ship. Features: Includes 1 Key. Made out of heavy duty aluminum casting.