Although only the ring is to cleverness fixation of metal, but that makes the big difference. We had upgraded our Gartenschläche in Summer 2013 on the Premium variant and did not regret it. If one uses his garden hoses often, the extra cost is definitely worth, especially in relation to the low-cost connectors of Aldi, etc., but also to the pure plastic version of Gardena. Would I do again anytime so.