Hose Bib Lock prevents unauthorized water use. You may not know those things on the side of your house are called "hose bibs"...you might call them outdoor water faucets or sillcocks. But whatever you call it, you don't want "unauthorized" people having access to it. Our water hose bib cover locks closed over the hose bib, keeping kids and strangers out. Durable composite material will not rust. Locks over the hose bib using any padlock (not included) with up to 3/8" shackle.