Welcome to our store! This product includes 2 guitar string tuning pegs, 9 screws, and 6 other accessories. Each tuning peg is made of durable ABS material, ensuring long-lasting use. The length of the string knob measures approximately 11 cm or 4.3 inches. These tuning pegs are designed for accurate tuning of all three strings on a guitar, with advanced technology for precise adjustments. They are compatible with all types of guitars, including acoustic, electric, and classic models. The package is easy to install and comes with all necessary accessories to quickly complete the installation process. Ideal for live performances, these guitar head tuners allow guitarists to adjust their instruments on stage without distractions. Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We will do our best to provide you with satisfactory after-sales service.