Features: Easy to change the strings, clockwise or counterclockwise switch to control string tension. Compact and light in weight, it is easy to store and carry. Electric winder and thread cutter, simple operate, convenient for daily use. Suitable for guitar, banjo, violin, bass, suitable for most acoustic and electric guitars and any other stringed instruments. The puller can work easily and happily without damaging the guitar bridge. Specifications: Materials: ABS Color: White/Orange Size: about 120x100x25mm/4.72x3.94x0.98inch Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1pc Guitar String Winder Easy to change the strings, clockwise or counterclockwise switch to control string tension. Compact and light in weight, it is easy to store and carry. Electric winder and thread cutter, simple operate, convenient for daily use. Suitable for guitar, banjo, violin, bass, suitable for most acoustic and electric guitars and any other stringed instruments. The puller can work easily and happily without damaging the guitar bridge.