Feature: 1. Easy Connection: Boat shaped audio cable jack plate, suitable for audio interface of electric guitar, convenient for connecting electronic devices. 2. Good Neck Plate: The neck plate reinforcement plate effectively prevents neck deformation and improves the stability and sound quality of the electric guitar. 3. Iron Material: Made of premium iron material, sturdy and reliable, ensuring a long lasting durability and good performance. 4. Quick to Install: Equipped with installation screws, it is simple and easy to use, and can be quickly installed on an electric guitar, saving time and effort. 5. Better Fixing: Specially designed for electric guitar string rollers, providing stable rolling function to ensure accuracy in pitch. Specification: Item Type: Guitar String Tree Retainer Set Material: Iron. Package List: 1 x Guitar Socket Board1 x Guitar Neck Plate2 x String Roller Retainer4 x Big Screw4 x Small Screw