Features 1、【Unique Design】: These guitar volume knobs feature a unique twelve-sided shape with Arabic numerals from 0 to 10. This special design not only adds a stylish touch to your guitar but also allows you to easily see and adjust the volume level. 2、【Perfect Fit】: With an inner hollow potentiometer shaft diameter of approximately 6mm (0.24 inches), these knobs are designed to fit perfectly on your guitar. They provide a secure fit and won/u0027t slip or slide, ensuring a smooth and stable performance. 3、【Easy Installation】: These knobs are designed for easy installation. They fit a potentiometer installation hole diameter of 6mm, making them suitable for most guitars. Simply slide them onto the potentiometer shaft and you/u0027re ready to play. Specification Features: 【Unique Design】: These guitar volume knobs feature a unique twelve-sided shape with Arabic numerals from 0 to 10. This special design not only adds a stylish touch to your guitar but also allows you to easily see and adjust the volume level. 【Perfect Fit】: With an inner hollow potentiometer shaft diameter of approximately 6mm (0.24 inches), these knobs are designed to fit perfectly on your guitar. They provide a secure fit and won't slip or slide, ensuring a smooth and stable performance. 【Easy Installation】: These knobs are designed for easy installation. They fit a potentiometer installation hole diameter of 6mm, making them suitable for most guitars. Simply slide them onto the potentiometer shaft and you're ready to play. 【Versatile Use】: These knobs are suitable for both EPI electric guitars and bass guitars. Whether you're playing rock, jazz, blues, or any other genre, these knobs can help you achieve the perfect sound. 【Pack of 4】: This pack includes 4 knobs, providing a complete set for your guitar. Whether you're replacing old knobs or customizing a new guitar, this set has you covered. Specifications: Inner Hollow Potentiometer Shaft Diameter: About 6mm/0.24inch Material: Acrylic Colors: Black, Light Brown, Dark Brown (optional) Single Product Size: 2.5 * 1.4cm/1 * 0.5inch Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please allow slight manual measurement deviation for the data. Packing List: 4 x Electric Guitar Knobs Package List 4 x Electric Guitar Knobs