6Pcs/Set Classical Guitar Rollers String Trees Nylon Guitar String Retainer Features: Designed to increase force of the strings against the pillow, resulting in improved volumes. These string retainers effectively retain the strings and reduce string friction, allowing for more accurate playing and saving on string replacement. Small, light weight and portable, a beautiful accessory for your guitar, easy to use. These string retainers contribute to longer string life and reduce the frequency of string replacements. Suitable for acoustic guitar, folk guitar, classical guitar, making versatile accessories for various stringed instruments. Specifications: Materials: Nylon Color: White/Black/Apricot Hole Diameter: about 1.2mm/0.05inch Package Includes: 6Pcs/set Guitar String Retainer Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.