DSL-2 Hose Bibb Lock - Outdoor Faucet Lock for Garden, Yard & RV - Prevent Water Theft & Unauthorized Use - Durable Weatherproof Design

I bought these quite a while ago when California was having the worst drought in the history of water, and I left them on my spigots after the drought was over; I had heard from neighbors that people were helping themselves to water by filling up huge containers and driving away with them. These locks really do the trick, they're very easy to use, and they can't be removed at all without the key!!! : )