Okeeyseda Guitar Locked String Tuners Tuning Peg Key Machine Heads Semicircle Button for Acoustic Electric Guitar Acoustic Guitar Tuning Peg (3L+)

NOT LOOSEN - The tuned guitar string does not loosen easily. TUNE GUITAR ACCURATELY - With these tuning pegs, you can tune guitar strings fast and accurately. - Locking tuners prevent the gear from being exposed to air and reduce the rust, which is more . EASY MOUNTING - Guitar Tuners comes with screws, bushings and ferrules for easy mounting. PREVENT SCREW SLIPPAGE - High quality internal gear, it's effective to prevent screw slippage.