TOOGOO(R) 17mm x 16mm Plastic Potentiometer Control Volume Rotary Knob Cap Black Product Name : Potentiometer Knob Cap;Material : Plastic Color : Black;Shaft Hole Dia. : 6mm / 15/64" Overall Size : 17mm x 16mm / 0.7" x 0.6" (D*H) Weight : 3g Package Included : 1 x Potentiometer Knob