Ratio Locking Machine Heads PRL-8721-LB0 - Electric, 6-in-line, Lefthand, (right / treble side), Contemporary Button, 2-Pin - Bl

- locking machine heads for electric guitar- 6 pcs. for 6-in-line orientation- treble side / left hand- incorporate string gauges in tuning equation- half turn equals half tone on each string- faster and more accurate tuning of each string- thumb wheel screw on the back for locking the string- contemporary tuning pegs- closed back- 2-pin mounting- mounting hole diameter 9.7 mm- post diameter 6 mm- incl. InvisoMatch standard mounting plates for use of existing screw holes- gear ratios E - 12:1, B - 20:1, G - 35:1, D - 20:1, A - 24:1, E - 39:1- black