Cable roll up, for rolling up 3 or 4 ft. android or iphone chargers.To use I usually find the mid point of the charger and run one end around the center hole again to make sure it does not come loose and that the roll-up stays in the middle.(57mm x 57mm x 30mm)
I have made this to print WITHOUT support, I recommend .02mm layer height at 50 mm/s , if using PLA print at 200 celcius or PLA + at 220 celcius for best prints.
I also have a cable roll-up that is larger for 6-7 foot chargers.