Homemade Bobbin Winder While making an electric ice fishing reel, my family asked me to fix the bobbin winder on their sewing machine, which was broken. I got the idea from that and made this. * Easy and fast winding. * Can be used on a surface or held in your hand. * Doesn't take up much space. * First, insert the bobbin into the tip of the main unit and lightly touch it with your finger while lightly pressing the button to wind it up. As you get used to it, you'll be able to wind it quickly and easily even by pressing the button firmly. ☆ Easy to replace with AAA batteries. * Although made with care, there may be minor scratches. * Please note that I use materials I have at home for packaging.