12pcs Guitar Hexagonal Open Gear Tuners Tuning Pegs Machine Heads Mount Hex Hole 1/15 Gears Guitar Instrument Parts Feature: Fits most guitar knobs, but not latching knobs. Since the latching knob gear is designed separately, all other knobs will fit as long as they are the right size. Specification: Name: 12pcs Guitar String Knob Hexagonal Open Gear Material: Metal Color: Silver, Gold Size: Diameter: About 1cm/0.39in Gear Ratio: 1/15 Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 12 X Guitar Hexagonal Open Gears