An inexpensive way to fix a burst hose.  I had another one of these on my hose, but it was metal.  When the hose burst further down, I couldn't get the metal hose mender off to move it because the screws had fused to the metal body.  I have had to move this one several times, since my super long hose tends to burst during the hot summer.  It comes apart and screws back together quickly.  It's a cheap fix until the hose gets too short and needs to be replaced.