It is specifically designed for beginners in guitar, with simple operation and easy pressing. It can be used with a tuning clip to make learning how to play guitar easier. Fixed key blocks can help you accurately find the correct chord. The side of the button is printed with chord letters, making it more intuitive and easier to remember during performance. Using polymer soft materials to protect the strings, with precise design and precise pressing, helping to reduce noise. Suitable for guitars ranging from 47 to 53.8 inches. The distance between chords can achieve a perfect effect within 4.5 millimeters. Especially suitable for acoustic and electric guitars. This product is particularly suitable for beginners. You can play F and G chords with one finger. This product is the latest upgraded version that can meet 90% of song performances. With it, you can quickly gain confidence in playing, making it a great tool for music enthusiasts. Color: Black Material: Plastic Package Contents: 1 * Guitar Learning Aid Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.