Key features and benefits Stable winding and secure setup Bottom suction cup design keeps the winder stable during operation Includes lock and hidden handle plus a dustproof construction for easy storage and transport Automatic winding with wide compatibility Auto winding stops when the bobbin is full to prevent overfilling Longarm quilting bobbin winder compatible with all major bobbin types, suitable for quilting and standard sewing machines Portable and compact design Small and lightweight for easy transport Simple one cord operation makes it convenient to use anywhere Designed as a practical accessory for quilting embroidery and sewing projects speed and reliable performance speed motor winds bobbins quickly and evenly Automatic stop feature ensures consistent winding without supervision Flexible power options and practical accessories USB powered or dry battery power supply for versatile use Builtin storage space keeps small items organized Spool thread stand included to support smooth winding Use scenarios Home quilting and embroidery Wind multiple bobbins quickly in a busy sewing room, keeping your workflow uninterrupted Classes, workshops, and markets Take it to classes or craft fairs with USB or battery power to wind bobbins on the go Workshops and studios with multiple machines Prepare bobbins for longarm quilting projects, winding batches efficiently without tying up machine time