Features: Good Quality: Crafted from durable zinc alloy with a chrome finish, these solid-built tuning pegs ensure longevity and resilience. Wide Compatibility: Designed to fit 6mm peg holes, these tuning keys are compatible with most electric and acoustic guitars. Well Performance: These tuners provide stable string retention with smooth turning, facilitating easy and precise tuning. Easy Installation: Comes with mounting screws, nuts, and washers for hassle-free installation. Professional Tuning Pegs: Semi-sealed peg machine heads serve as excellent replacements for worn-out 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 x 13 x 6cm / 3.93 x 5.11 x 2.36in Note: Guitar string tuning pegs only; other accessories shown in the pictures are not included. Pictures and actual product may slightly differ due to lighting or other reasons. Manual measurement may result in slight deviations; please consider the actual product as standard. Packing List: 6 x Guitar String Tuning Pegs