Title: Does what it's supposed to.
Product review: The device does what it's supposed to. Doesn't come with instructions, but after about 15 seconds study (or less), you get it: Slip it over the tap (as indicated in the picture here), and turn the key until the handle cannot be pulled forward (the key is actually used to 'screw' the pressure fitting against the handle). My only caution is don't over-tighten and risk stressing or breaking the assembly.Wish list: Maybe some sort of collar to keep near when it's not in place. An if it had an actual rubber cap for the tap to prevent air getting in and help keep it clean, that would be sweet.
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