Precise Control: The size of the D-type potentiometer control knobs is 0.66 × 0.62 inches / 1.7 × 1.6 cm. Achieve smooth and accurate control over volume and tone with these potentiometer knobs. Whether you're adjusting your guitar's sound or fine-tuning your mixer, these knobs provide the precision needed for optimal audio performance Potentiometer Knob Set: The Sorcristy Potentiometer Knob Set includes 20 black polyethylene knobs, perfect for replacing or upgrading your audio equipment. These potentiometer knobs fit a standard 6mm D-type shaft, ensuring compatibility with a wide range of devices High-Quality Material: Crafted from polyethylene, these volume knobs are designed to withstand frequent use while maintaining their sleek appearance. The material ensures longevity and resistance to wear, making them a reliable choice for musicians and audio enthusiasts Easy Installation: With a standard 6mm D-type shaft, these potentiometer knobs are easy to install and replace, requiring no special tools or modifications. Save time and effort when upgrading or maintaining your gear with these user-friendly volume control knobs Versatile Application: Designed for electric guitars, audio mixers, DJ consoles, and speaker boards, these volume control knobs are a versatile addition to any audio setup. Enhance your equipment's functionality and style with the Sorcristy Potentiometer Knob Set