This versatile guitar and bass knob electric string winder plug is equipped with an upgraded winding head and a manual handle, providing a practical solution for string maintenance. Its robust build and easy-to-use design make it suitable for various settings, from home practice to live performances, ensuring your instrument is to play. Features -Color:Black -Material:Plastic, metal -Size:9.50X5.70X2.50cm/3.73X2.24X0.98in -Size:6.50X2.80X2.50cm/2.55X1.10X0.98in -Quick winding head: experience rapid and stable string winding with our upgraded winding head, designed for a smoother string changing process. -Manual handle for control: easily adjust string tension with handle, offering greater control and precision during use. -Suitable for guitar and bass: this tool is for both guitar and bass, providing a versatile solution for your string maintenance needs. -Reliable plug connection: the plug ensures a stable and secure connection, reducing the risk of loosening during use. -Timesaving design: simplify your string changing process with this userfriendly tool, designed to save you Package list: 1 x guitar string winder 1 x handle