This is the second Triphase Cable Set I've ordered, and I don't even use my E-Stim unit without them, they're that good. I ordered a new cable set out of concerns that that I was wearing out the first set and I wanted a backup. Alas - the new cable set appears to be made of lighter gauge wires than the first set which are light enough to give me real concerns about durability, and hence only a 4 star rating. I will note that the thicker wires in my old set were stiff enough to impair use to a certain degree, so the increased flexibility of the new wires is appreciated.