1、Made of zinc alloy, wear‑resistant and durable, and can be used for a long time. 2、Excellent workmanship and polished appearance, easy to install and use, lightweight and durable 3、Can be used to replace the keycaps of classical/electric/folk guitar tuning knobs 4、Small size, easy to carry and store, convenient to use and with good performance 5、With great workmanship, this product can perfect replacement for the old one 4 x Tone Button4 x White Washer4 x Black Washer4 x Screw Item Type: Tuning Peg CapOptional Colors: Silver, black, goldMaterial: Zinc AlloyAppearance Size: Small fish tail shapeWidth: Approx. 20.2mm / 0.8inMounting Hole Size: Length x Width: 3.2 ~ 4mm / 0.1 ~ 0.2in (irregular shape) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin