Description: Guitar Tuners Tuning Pegs Key Machine Head Hex Hole Gear 100% brand new and high quality, testing is fine Perfect for guitar replacement Gear Ratio: 1:18 Colour: Copper Material: Copper Size Chart: Diameter: Approx. 11.8mm/0.46inch Package Includes: 30 Pieces Guitar Tuner Gears Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2cm error in size