Use with your cordless screwdriver / drill (not included). Place your boat shuttle bobbin on the end and go. Makes bobbin winding fast, easy and efficient. Dani demonstrates exactly how it works for you in this handy video.
Made specifically to fit Schacht and Leclerc bobbins; it will not fit Ashford boat shuttle bobbins. For more information head to: https://woolery.com/rosies-bobbin-speed-winder-insert.html
