Neewer 6pcs Chrome Acoustic Guitar String Tuning Pegs Tuners Machine Heads The item you're biding on is a set of 6 chrome machine heads for steel string (electric or acoustic) guitars.^6 sets for the left and the other 3 for the right.^Absolute high quality guaranteed Guitar Tuning Keys!^The Guitar Tuning Pegs is great for guitar tuning.^Made with metal.