Spool only for Spool Winder

This is a Spool only for the Spool Winder Kit 

Tired of paying for 4 large spools of thread for your serger just to match the color of a small project?  This is the answer, buy one spool and wind that thread on 3 of these spools and your ready to go.  

Also can be used to wind specialty threads on the spools

This is for one spool only