6R6L guitar tuning pegs tuners machine heads compatible with 12string guitars The machine heads is made of quality metal material , good performance of stability and durability With this 12 string guitar tuning keys,it can makes your guitar strings not easy to loosen,and you can tune the guitar strings quickly and accurately The internal gears of these tuning pegs effectively prevent the screws from slipping Ideal to replace your the old or damage parts and great for guitar tuning Easy to install and replace great for replacing your old and dirty tuning pegs and great for guitar tuningProduct Specification: Material: Metalgear Ration 1:14Post Spacing: 25mm(098)Shaft Diameter: 6mmShaft length: 27mm( 106 )Full Length:165mm Location: 6L6R Weight:302gSetPackage includes: 1 x Left guitar Tuner 1 x Right guitar Tuner 1 x Installation Accessories Set