Golden Twist Lock Electric Acoustic Guitar Tuning Pegs Machine Heads 3X3 3L3R Economy 3L3R Auto Locking Tuning Key Sets for Acoustic and Electric Guitar, Heavy duty internal gear It will fit standard 13/32 inch (10mm) peg holes, Button Knobs Auto Locking Tuners; Color: Golden Color 3pcs Per Left Side and 3pcs Per Right Side Package Includes: 6 x Machine Heads, 6 x Ferrule, 6 x Threaded Bushing, 6 x screws