Feature: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 WinderMaterial: Plastic, MetalColor: Black.Package List:1 xString Winder