Description: Set of 6 Guitar Tuning Pegs Tuner Square Button Machine Heads Locking Key Compatible for Classic Acoustic Folk Guitar Heavy duty internal gear & standard size Type: 3 in line tuning peg 3R3L Material: Zinc alloy Size Chart: Length: Approx. 107mm/ 4.21inch Package Includes: 6 Pieces Guitar Tuning Peg Tuner 3R3L Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item Due to manual measurement, there may be 1-2mm error in size