6pcs Guitar Lock String Tuning Pegs Semi-Closed Tuner Machine Heads for Acoustic Electric Guitar Parts Feature: 6 Quality chrome machine heads for steel string (electric or acoustic) guitars (3L + 3R). Adopt 16: 1 copper gear. Specification: Material: Alloy handle + A3 steel plate + easy cutting iron string + steel gear 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 1-3cm measuring deviation due to manual measurement.