USB cable reel

A cable reel for USB or other kind of cables. Two versions: standard and big, for different lengths of the cable. The reels are stackable (see the last photo). For a smaller version see: https://www.thingiverse.com/thing:3242158 29/11/2018 at the request of szymon_sz, I added a new, even bigger version (cable_reel_large_A and B).