I really tried to avoid buying this handle for the longest time. I kept telling myself I'll make a better one. Then my coil fell apart and it was too late. New coil+handle now my only regret is letting the first coil go without one until the braiding fell apart. The cord on my first cable is so ripped to shreds that the handle can't hold it together. When I thought I could save the coil, I had hemp wick tied around the braiding on the cable and pulling it to the handle. Tied so tight that it was constricting every individual wire. I'd take it out to get pictures but I still have some hopeless dream of reviving the coil somehow and I'm assuming that if I touch it at all without supplies and plans for repair, I'll lose the soldered connections from coil to wire and then it's really too much of a hassle for me. One wire is already loose (yellow wire. I'm assuming that's the ground wire because it still worked without it. Probably not good that I kept using it without that.)
Anyways all that to say save yourself some trouble, shredded cables, and heartache. Just buy the stupid handle. Yeah it's $40 but it immediately takes the jank feeling out of vaping from bongs. Seriously the difference between stock coil and these handles is something that can only be experienced. But I advise against that experience because as I learned the hard way, run it without a handle for too long and the fabric braiding keeping the wires protected just tears right at the end.