Features 1、Applicable Equipments: This string winder is suitable for acoustic guitar and electric guitar, and for bass and electric bass. 2、Plastic, Metal Material: Made of premium plastic, metal material, this string winder is strong and sturdy, scratch and impact resistant, you can use it for a long time. 3、Standard Size: This string winder is well crafted in standard size, which can achieve a tight fit with your equipment, and improve efficiency, take it with confidence! 4、Easy Store: This string winder is small in size and light in weight, you can put it in your bag or pocket for convenient replacement and use. 5、Ideal Replacement: The black string winder can be easily installed, ideal replacement for the old and damaged parts. Specification Item Type: String Winder Material: Plastic, Metal Color: Black Package List 1 x String Winder