Description: 【Multifunctional】: This electric guitar string roller retainer set can meet various needs for electric guitar maintenance and modification, suitable for luthiers and professionals. 【Quality Material】: All parts are made of quality materials to ensure durability and stability. They can maintain good performance in long term use, meeting your requirements for sound quality and lifespan. 【Easy to Install】: The product comes with installation screws, making the installation process simple and easy. No professional skills are required; you can do the maintenance and modification at home conveniently. 【Wide Applicability】: Whether you are a luthier or a professional guitarist, this toolset is suitable for maintaining and modifying your electric guitar to enhance its performance and sound quality, thus improving your playing experience. 【Improve Sound Quality】: By using the electric guitar roller string tree kits, you can effectively improve the sound quality and stability of your electric guitar, making your performance smoother with purer tones. 【Package List】: 2x Guitar Roller String Trees 1x Guitar Load Jack Socket Plate with Mounting Screws Size Chart: Guitar Load Jack Socket Plate: 8.1cm/3.19inch Package Includes:2 Roller String Tree with Mounting Screws 1 Guitar Load Jack Socket Plate with Mounting Screws Note: Please allow slightly errors 1-2cm differences due to manual measurement.