Soldato
The one on the left. This would look awesome in a dual loop system. Invent this and I will specifically get a graphics card purely to run a 2nd loop to it and both through something like this.
Tubing would kink up then.
its spiral wound plastic tube not flexible tubing as such .
but even if it was flexible so as long as the top and bottom are fixed it wont kink as long as you dont bend it further than the type of tubing would allow