wiring helpers for 2020 V-slot (Tarantula)

Those things to help to put wires along frame made of 20x20 aluminium V-slot.
This kind of aluminum profile is popular, and here a lot of things of such kind. But profiles of different manufacturers have their own groove sizes. So it is often happened, the thing designed for another profile is too tight and does not fit or too small and doesn't hold in the profile at all.
So, those things I designed from scratch specially for 2020 profile of my Tevo Tarantula. I have printed dozen of version t