When we get orders for 5 it is our policy to try to pull ones that all have the same key. However if you want to make sure that happens, if you don't want they keyed the same or if you want them keyed the same as others you purchased prior, it would be a good idea to call us after you order them, with you r order number. That way we can make sure you get what you want. Chris 978 651 3301
The unit is basically a cylinder inside of cylinder. With the lock engaged the two sections are one so you can screw it on. When the lock is disengaged the outer part just spins and you are unable to unscrew it. When used it will prevent a hose from being connected to the hose bib. In most cases it will stop the flow of water completely if the valve is then turned on by vandals. However in areas with real high water pressure I have seen some drips.