Added a Lid.
I've designed a spool holder for your spools with electrical wire, solder wire etc etc. The design is completely support free if oriented the correct way.
I use it without a lid on the box. If someone really wants to use a lid just say so in the comments and I'll design that too.
TIP: Use some double sided sticky stuff to mount the base on your desk. This will hold the base in place when pulling some wire out.
Designed with: Fusion360