jb offer JRB-3590 series and JRB- 3540 series Rotary Potentiometer

Rotary potentiometer(Multi-turn potentiometers）with a control knob on the top, they can vary their resistive value as a result of an angular movement. Rotating a knob or dial attached to the shaft causes the internal wiper to sweep around a curved resistive element.
Multi-turn potentiometers allow for a shaft rotation of more than 360 degrees of mechanical travel from one end of the resistive track to the other. The most common use of a rotary potentiometer is the volume-control pot.