Multifunctional guitar string winding tool-Ergonomic, high-quality design, built-in scissors, bridge pin puller and bolt winder are all involved in one tool, which makes it faster and easier to change strings than ever before. Every guitar case is a must-why fill your case with three tools? This indispensable tool has been carefully designed and can be comfortably held in the hand, and is suitable for almost all electric guitars and acoustic guitars, bass, banjo and mandolin guitars. And the bass guitar version. Guitar winder-Guitar nail winder is suitable for guitar tuning pin and rotates, which helps to wind the guitar string and change your guitar string faster. Built-in string cutter-Hardened steel scissors on cutter, you can cut off old strings cleanly, remove them more quickly and easily, and trim the extra strings after circulating through the tuner. Integrated guitar pin remover-specially designed for acoustic guitarists, with built-in bridge pin puller. This makes it easy to remove stubborn needles without the risk of damage caused by pliers and other tools. Specification: B: Popular Style Colour: Black Material: Metal + Plastic Package Contents: 10 x string trimmer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.