●Locking tuning machines, Fits many electric guitar with modern 10mm (25/64 inch) peg hole and 45 degree screws holes, like Squier/Fender Strat/Tele style guitar ●19:1 ratio, smooth tuning, threaded locking button ●Classical standard modern machine heads design with good compatibility, easy to use ●Full metal, sealed design, quality electroplated finish and hardware ●6-in-line full set, includes mounting accessories