Earbud spool with cable fixing feature

This thing is for storing earbuds in your pocket. It allows you to fix your cable without risk of self opening.

Advantages compared to other earbud holders:

- Low stress to the cable. Low bend angles to the cable.
- Cables are held by the squeezing spring body.
- No self un-winding.
- Prints easy on typical 3d printers - short printing time
- Very light - weights only 8 grams

Just uploaded a slightly updated Version with a deeper cable groove. (earbud-roll4.stl)