eRise Tuning Peg Silver for Acoustic Guitar Parts Tuners Keys Semi-closed Guitar String Tuning Pegs Tuner Machine Heads Knobs Tuning Keys for Acoustic & Electric Guitar 3R+3L(6 PCS) Manual Digital Tuner  (Chromatic: Yes, Silver)

6 Pieces Guitar Keys for Acoustic Guitar Chrome Tuning Pegs Keys 3 Left 3 Right Guitar Machine Heads Knobs With Strap Button Locks Guitar Keys 3R+3L 6 pcs- Chrome Package Includes: 6 X Machine heads(3L + 3R),12 X Mounting screws ,6 X Ferrules Materials: chrome finish zinc alloy metal, plastic 6 Pieces Guitar Keys for Acoustic Guitar Chrome Tuning Pegs Keys 3 Left 3 Right Adjustable - Guitar machine heads knobs with heavy duty internal gear can be tuned tight to make your guitar sound stable