Grover 502C Chrome Locking Tuners 3x3

Roto-Grip Locking Rotomatics® utilizes the famous 18:1 Rotomatics® design with a “thumb screw” mechanism which locks the string into place. Insert the string through the post hole, wrap around once, then lock by tightening with the thumbscrew. Perfect replacement for the most standard machine heads. Includes all mounting hardware.