Feature: 1. Excellent Plastic Material: The electric guitar speed control knob is made from excellent plastic material, providing exceptional durability and long lasting performance. It is designed to withstand heavy use and resist wear and tear. 2. Easy Installation: The guitar control knob is designed to fit a 6mm potentiometer mounting hole, making it compatible with most standard guitar potentiometers. It can be easily installed without the need for securing screws, simply push it onto the knob shaft for a quick and easy installation. 3. Good Compatibility: The electric guitar knob is suitable for a wide range of electric guitars and bass guitars, making it a versatile accessory for musicians looking to customize or upgrade their instruments. Its universal design and rugged construction make it a reliable choice for enhancing the appearance and performance of your guitar. 4. Multifunctional: This guitar speed control volume tone knob is multifunctional and can be used for volume adjustment, intonation adjustment, speed control, etc., giving you convenient and accurate adjustment operating on your guitar. 5. Wide Application: This guitar volume tone control knob has a wide range of applications, can be used for daily practice, stage performances and music recordings, etc. It is great for replacing your damaged, dirty or old volume control knob with guitar parts. Specification: Item Type: Guitar Knob Material: Plastic Mounting Inner Hole Diameter: Approx. 6mm / 0.24in. Package List: 4 x Guitar Knobs