Features: Good Quality: Solid-built tuning pegs made of zinc alloy material with chrome finish, designed for long-lasting durability. Wide Compatibility: These guitar tuning keys fit 6mm peg holes and are suitable for most electric and acoustic guitars. Well Performance: Tuners provide stable string hold, smooth turning action, and allow for easy and accurate tuning. Easy Installation: Includes mounting screws, nuts, and washers; ready for use and simple to install. Professional Tuning Pegs: Semi-sealed tuning peg machine heads serve as a great replacement for old or damaged tuners. Specifications: Material: Zinc Alloy + Iron Color: Black / Silver (Optional) Type: 3R + 3L / 6R / 6L (Optional) Product Weight: 135g / 4.76oz Package Weight: 160g / 5.64oz Package Size: 10*13*6cm / 3.93*5.11*2.36in Note: Guitar string tuning pegs only; other accessories shown are not included. Due to lighting or other factors, the actual item may slightly differ from the image. Manual measurement may result in slight deviations; please refer to the physical product for exact details. Packing List: 6 * Guitar String Tuning Pegs