12Set Tuner Machine Head Buttons Plastic Metal Guitar Tuning Pegs Button For

--\n--\n--\n--\n\nFeature: \n 1. Plastic + Metal: Guitar tuning knob is made of excellent plastic + metal materials, giving you a better feel and experience\n2. Basic Specifications: This guitar tuning has elegant appearance, and the mounting hole size is approximately (L x W) 3.8mm\u20114mm\n3. Scope of Application: This is a tuning button, which is suitable for electric guitars, folk classical guitars, etc.\n4. Stable Performance: Tuning knob is environmentally friendly, odorless, sturdy and durable, stable in performance, and long in service life\n5. Exquisite Workmanship: Fine workmanship guitar tuning, with good texture, glazed appearance and easy to use \n\nSpecification: \n\nItem Type: Tuner Machine Head Buttons\nMaterial: Plastic + Metal\n\nPackage List: \n12 x Tuning knob\n12 x Screw\n12 x Black Spacer\n12 x White Spacer \n\nNote: \n Only approximate size for this tuning knob mounting hole for reference, can not be totally exact.Only the approximate for refere-