KnobsKnobs are hardware devices that are used to provide a gripping surface for manual operation or adjustment of a device or mechanism. They are typically attached to a shaft or other protrusion on the device, and can be rotated or turned to adjust the device's settings or control its operation. Knobs are commonly used on a wide range of devices, including pots and switches on electronic equipment, dials and levers on machines and instruments, and handles on doors and drawers. They are available in a variety of different styles, sizes, and materials to suit different applications and design requirements.