Electric Bobbin Winder Automatic Thread Sewing Machine Accessory Features: . Easy to install and maintain, durable and practical. This bobbin winder machine saves a lot of time when you need to get a large project completed quickly. Electric bobbin winder can be table mounted, very convenient. Automatic bobbin winder for domestic and industrial sewing machines bobbin. Specification: Material: Plastic Weight: 358g/12.6oz Size: 14.5 x 7 x 7.5cm/5.7 x 2.8 x 3inAperture of suitable spool for winding coil:0.7mm Package Includes: 1 x Electric Bobbin Winder Note: 2. Please allow slight error due to manual measurement. Thanks for your understanding. 3. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.