Did a wire container ring a while back and was amazed at how many people liked and downloaded it. I did several for myself on a Mega Kossel I'm building but found that when there are just a few wires I would much rather tuck them down into the slots of the extrusion and just trap them there. I recalled a similar design here but could not find it, so I did this one from memory. My apologies to the original designer for not giving proper credit. If I could find it I would certainly do that. I have two models. The first with a turning tab to twist it easier. It takes a lot more material to build and I prefer the smaller one anyway. I am posting this without having made one yet so I hope it fits your 20/20 extrusion ok. EDIT: I have made them now and they work great in 2020 extrusions.