Product Application: Guitar string tool can be used as a repair tool for guitar, banjo, mandolin and ukulele quickly and reliably. Premium Material: The exterior is made of high-strength ABS hard plastic, and the interior is made of high-quality metal, which is strong and durable and can be used for a long time. Easy to Use: The winder of the three-in-one guitar can easily, quickly and reliably change the strings, suitable for amateurs and professionals. Easy to Carry: Small size, about 12.5cm in length, can be stored in a guitar case and carried with you. Features 1. Play strings, secant, pull the cone, 3 in 1 multifunctional guitar repair tool. 2. Ergonomic design, comfortable to hold, non-slip, very convenient to operate, compact and easy to carry. Specifications: Size: 12.5*6.5*2.5 cm Color includes: black,White, yellow Package includes: 1pc* guitar winder