If you are using an original JES, then I guess JES sell them on their web site. There were - some time back- a guy in Australia who asked for a web site to buy a JES, and I said their own site, but another guy mentioned an Australian site. I don’t remember it, but look up some threads from this summer to find it here on the extender thread. Another thing that You can do, is to buy a Chinese knockoff from Ebay, and use the frontpiece from it ( and get extra bars and extra straps on the bargain), or buy just the frontpiece. The copy frontpiece will not properly fasten itself to the rods, it will fall off when you unstrap your penis, but it will stay there during usage.