How to use this nifty little invention I call the bobbin pin spool adapter. Use it to divide large serger spools. Refill and reuse empty spools.
To purchase visit my shop here https://marblegems.etsy.com
6mm bobbin pins. https://www.etsy.com/listing/1545083138/6-mm-thread-winder-bobbin-pin-spool?
1/4 inch bobbin pins. https://www.etsy.com/listing/1559263951/14-inch-thread-winder-bobbin-pin-spool?
