DescriptionThis is a set of control knobs. Adjustable rotate button potentiometer is a manual with manualcontrol. Can control the effect of a variety of functions, such aslevel, speeds, voice, etc. Can be used for synthesizers, electricguitar, etc. The product is suitable for people to use.Features-Material: Plastic.- Easy installation, not easy to age, sturdy material, dustproof and anticorrosive. - Potentiometer rotary knob is useful for connecting the rotary potentiometer, usually multiturn linear potentiometer which is always used as volume control switch. - Replacement part for audio device, round shaft can be pushed on it easily. - The knob is made from bakelite, lightweight design, exquisite appearance, practical and durable. - These knobs are solid, wear resistant, and the service life is long, you can use it with confidence.