Spooler works best with fibers and light Ethernet cables. To build this thing you need 4pcs 12*3mm magnets. To use this thing you probably want order 1cm wide cable straps from ebay.

Using:

1. remove other half of reel
2. add cable to small slot
3. put half back
4. spool cable
5. add cable straps to bundle
6. open reel and remove bundle