The Flow Security Systems Faucet Lock II | Magnetic Key | Prevents Water Theft, Secures Outdoor Taps, Promotes Water Conservation | Fits Most Outdoor Hose Bibbs | FSS 500 | Keyed The Same | 4 Pack

Bought these to stop a water thief that kept camping in my backyard. They threaded on easily. The thief tried to break this lock off with a sharpened stone. They hammered away at it for several minutes. The metal lock did not yield or deform.My only complaint with this design is that it doesn't protect the valve. You can still turn the water on. This lock is supposed to act as a seal to prevent water leakage, and it does an OK job at it. With the spigot on full, mine still leaked a tiny bit. A slow drip. Could probably be fixed with some thread tape. Thankfully, this slow drip was not enough to satisfy the water thief and they eventually gave up. Success. And a bargain for the asking price of $11 per lock with free shipping straight to my door.

Works great. One key fits all my faucet locks!

I bought three of these and every single one just spins and does nothing. No functionality, no purpose—just a waste of money. This product is either extremely poor quality or completely defective. Either way, avoid it. Total disappointment.

So far so good.

Purchased a few of these magnetic hose bibb/faucet locks to secure my garden faucets. These locks are made of powder coated aluminum, made to last a very long time, will not rust. The magnets that are used inside are the extremely powerful and permanent, rare earth magnets. Each lock comes with two magnetic keys; keys have magnets encased inside plastic sheath for durability and protection. When the magnetic/plastic key is inserted into the side of the FaucetLock II key hole, the magnetic key triggers the earth magnets inside the lock to join the free spinning thread part to the outside powder coated casing, thus allowing the entire lock to rotate to lock/unlock onto the thread of the faucet. Without the key, the aluminum internal female thread stays secure to the hose bibb male thread, while the outside powder coated casing spins freely. There's a rubber stopper at the bottom of the lock that seals in the water from the faucet. Once the lock is hand tightened to the hose bibb, not a single drop of water will come out even with the faucet turned all the way to full. I can rest knowing nobody will take my water without me knowing! I also like the smooth look of these faucet locks, blending in with my garden. It's so small and cleverly designed, it looks like it's not a lock when looking from a distance. Only fault I found was the key holes were a little sharp on the edges, may cut the fingers of little kids playing with it if they're not careful. I filed the edges of the key hole down to taper them. Need to taper the edges for future locks that are sold.

So, I might not know JUST HOW GREAT these things are if I hadn't spoken to the owner of the company today, who phoned me personally at home on a Saturday after receiving a distraught complaint message that my two locks were defective. I had looked up the company through my Amazon order and sent the message, after which I saw that they have a customer service number I could call M-F.The company owner called directly from his personal cell and talked me through a little work-around that got them working again.So, how do they work and not work? Magnets! Once these fit onto the hose bibb (with your key inside) you hear and feel a sort of click into place. Then you remove your key (containing a magnet), and your precious water is on serious lockdown from thieves. Once you need to access your water, you simply insert the key and start unscrewing.My hiccup today was that the lock kept turning in place rather than unscrewing, which is exactly what it does for the people you want to keep out, and what you want it to do to them. But when your magic key is in there, you want it to come off. Apparently a couple of taps on the locking device itself helps tap the "sleeping" magnet back into place, because it worked on both locks that were jammed up. The gracious owner still offered to let me return these in exchange for the brass version with a traditional key at no extra charge. He explained that the brass ones are more costly to make, which is why they are more, and that w/o regular maintenance like WD40 they could fail from corrosion. But that the magnets should last with no maintenance at all, which is how they came to be invented. And they're cheaper to make because the parts are less than brass. Fascinating!Even with the hiccup today I opted to take the leap of faith on the magnets, because I just love the innovative technology.I think if you've checked the listing you can see you can order as many as you want all keyed the same (one key = multiple locks) or keyed differently, but that is a nice bonus for those of us who like it simple. The keys are lightweight and plastic and just plain bizarre. The locks themselves are very heavy and feel sturdy and well made.It seems that the occasional one might fail or be a lemon, but rarely, and if so, it sure seems this company will more than take care of you. I've never gotten service like that EVER. It's rumored the world was like this back in the '50s, but I'm an unfortunate product of mega-corps and phone tree robots that never get a human on the line. I was really blown away by this level of service.

Helped stop water thieves!