Pack of 12 threaded, knurled potentiometer knob caps in red, designed for shafts with a 6 mm hole diameter. These knobs offer a straightforward replacement or upgrade for rotary controls, improving grip and control while providing a consistent visual finish. Key benefits Secure fit: Threaded design offers reliable attachment to compatible potentiometer shafts, reducing slippage during use. Better control: Knurled surface increases tactile grip for precise adjustments in audio, instrumentation, and DIY projects. Consistent appearance: Pack of 12 matching red knobs makes it easy to standardize controls across a panel or device. Easy to install: Simple threaded mounting is quick to fit onto matching 6 mm shaft hole potentiometers. Versatile use: Suitable for a wide range of potentiometers and rotary controls with a 6 mm shaft hole diameter. Important attributes Function: Replacement or upgrade knob caps for potentiometer shafts to improve ergonomics and appearance. Compatibility: Fits potentiometers and rotary controls with a 6 mm shaft hole diameter. Size: Shaft hole diameter 6 mm; sold as a set of 12. Design: Threaded mounting with knurled outer surface for enhanced grip. Performance: Provides stable, repeatable manual control and helps protect the underlying shaft from wear. Practical applications Audio equipment maintenance: worn knobs on mixers, amplifiers, and home audio gear to restore consistent feel and presentation. Musical instruments and effects: Install matching knobs on guitar pedals, synthesizers, and other instruments for improved control and an organized layout. DIY electronics and prototyping: Use in hobby projects, control panels, and test equipment where reliable, repeatable potentiometer adjustment is required. What you get Twelve red threaded, knurled potentiometer knob caps, each sized for a 6 mm shaft hole diameter. Simple, practical, and ready to install for consistent control and appearance across multiple devices.