Simple portable sewing machine Electric bobbin winder <ul class="a-un0rdered-list a-vertical a-spacing-mini"> <li class="a-spacing-mini"><span class="a-list-item">High speed, this bobbin winder can save you a lot of time when you need to complete a large project quickly. </span></li> <li class="a-spacing-mini"><span class="a-list-item">【Bobbin Winder】The electric bobbin winder supports USB and battery power. The on/off button and indicator light make it easy to use, and it automatically shuts off when the bobbin is full. </span></li> <li class="a-spacing-mini"><span class="a-list-item">【Automatic Bobbin Winder】This automatic bobbin winder is suitable for both home and industrial sewing machine bobbins. It is durable and practical, making your sewing work more convenient. </span></li> <li class="a-spacing-mini"><span class="a-list-item">【Bob Winder】Easy to install and maintain, this automatic bobbin winder comes with screws, a bobbin holder, and a base plate so it can be mounted on a table, or you can place the portable automatic electric bobbin winder wherever you want it. </span></li> <li class="a-spacing-mini"><span class="a-list-item">【Sewing Machine Bobbins】Fits all bobbins, including M, L, 15 (universal), or any spool with a 1/4-inch (0.64 cm) center hole. Most bobbins will fit in the default position. If your bobbin doesn't fit, or if the bobbin winder's position on the bobbin is uneven during use, try adjusting the sensor's position. </span></li> <li class="a-spacing-mini"></li> </ul>