GUOOL Electric Bobbin Winder for Sewing Machine Easy to Install Automatic Bobbin Winder Machine for s Tools Sewing Winding.This electric automatic bobbin winder saves a lot of time when you need to quickly complete a large project winding project.A simple, easy way to transfer thread from a spool to a bobbin, automatically shuts off when the bobbin is full.This electrical bobbin winder comes in a compact size and completes any collection of sewing tools.The bobbin winder for sewing machine is easy to install and maintain, and there is no problem in daily use.Suitable for domestic and industrial sewing machines, convenient for your sewing work.Portable Intelligent Automatic Bobbin Winder. Thread Yarn Winding Fits All Bobbins. High Speed Electrical Bobbin Winding Machine. Embroidery Machine Universal Assistant Tool. Industrial Domestic Sewing Machine Accessory. [Application]Suitable for domestic and industrial sewing machines, convenient for your sewing work. [Automatic Bobbin Winder]A simple, easy way to transfer thread from a spool to a bobbin, automatically shuts off when the bobbin is full. [Easy to Use]The bobbin winder for sewing machine is easy to install and maintain, and there is no problem in daily use. [Feature]This electrical bobbin winder comes in a compact size and completes any collection of sewing tools. [Fast and Efficient Winding]This electric automatic bobbin winder saves a lot of time when you need to quickly complete a large project winding project.