This is a nice simple piece of critical equipment. If it didn't work properly, it could cause a lot of hassle (air gaps / hoses coming off). The two wires fit easily over the end of the hose and seated snuggly on each side of the hose groove and then clamped up nice with just a phillips screwdriver. The wires strattle the ribbing on the hose, creating a nice tight fit. I put in 24 of these wire clamps without one problem, air leak or lose hose.