I first saw these hose menders at the local hardware store many years ago, maybe 10 or more years. You can fix a hose with these in five minutes. All you need is to cut the bad hose where the problem is, (I use a hacksaw), use a phillips head screw driver to separate the halves, push the cylinder part into one part of the hose, fasten the two halves on that part with the two screws, then do the same to the other half. Be sure to buy the right size of mender for the hose inside diameter you have. I use the one-half inch the most. I always buy extra menders and keep the extras in the garage as it is so convenient when the spare mender is only a few steps away in the garage. Hoses usually develop a slight leak that only grows with time and of course it is inconvenient when it finally gives way and then we say to ourselves "Wish I had a spare mender." I'd like to see Gilmour manufacture a whole range of things. Best of all, "Made In U.S.A.