Perfect for guitar enthusiasts, musicians, and engineers, these effect pedal knobs provide a comfortable grip and smooth operations Their smooth designs and excellent make a great selection for musicians, sound enthusiasts, and professional These effect pedal knobs are suitable for various devices such as guitar effects pedal, amplifiers, and speakers Easy installation on 1 / 4 " diameter shafts These guitar effect pedal knobs great for guitar effects pedal add a touch of sophistication to your equipment, making it great appealing Whether you ' re modifying instrument, adjusting guitar effect, or fine tunings guitar tones, these effect pedal knobs are essential tools for control, Manufacturer: JAMIEKA