100pcs 6mm Shaft Ribbed Grip Potentiometer Control Volume Knob, Parameters： Fit for Shaft Hole Diameter:6mm/0.23"; Overall Size: 15 x 15mm/0.59" x 0.59"(Diameter*H); Color: White+Green+Blue+Red+yellow; Material: Plastic; Model:Carved Handle Knob. High Quality： The installation hole of potentiometer with knob is designed for D shaped shaft, adopting aluminum and plastic material, durable and anti-corrosion. Feature： Potentiometer Rotary Knob is useful for connect the rotary Potentiometer, usually multiturn linear potentiometer which always use as volume control switch. Application： Electronic Control Potentiometer Knob For 6 mm/0.23" Diameter Shaft,Volume Control Knob, Audio knob, Guitar Knob，Electric Guitar Knobs，Encoder Code Switch Knobs. Package Contents： 100Pcs x Potentiometer Knobs(20Pcs of each color).