- High-Quality Materials: Constructed with a durable ABS plastic handle, A3 steel plate, iron cord, and copper wheel, ensuring superior quality and reliable performance for your tuning needs. - All-in-One Set: Each unit comes with a white plastic ring and two screws, making installation quick and easy. This complete setup enhances your overall tuning experience. - Robust Design: Engineered with a three-way alignment for enhanced stability and long-lasting durability. The wear-resistant and corrosion-resistant materials guarantee dependable use over time. - Versatile Compatibility: Ideal for a variety of string instruments including guitars, folk guitars, acoustic guitars, and cigar box guitars. It works seamlessly with high-quality open gear tuners for optimal tuning precision. - Practical Applications: Perfect for musicians looking to quickly and accurately tune their instruments before performances or rehearsals. Also great for hobbyists and luthiers who need a reliable tool for maintenance and setup. - User-Friendly: Designed for ease of use, making it suitable for both beginners and experienced players. Enjoy the benefits of an efficient tuning process, enhancing the sound quality of your instrument.