ITEM NAME:Aluminum alloy knob for volume control, 23 x 17mm, black Z6K1 Aluminum alloy knob for volume control, 23 x 17mm, black Z6K1 The potentiometer knob can be plugged into potentiometers, such as the linear multi-turn resistors used for most volume controls. The type volume control, turns clockwise and counterclockwise. Spare part for audio equipment, can be simply put on a round 6-mm shaft. 360 degree rotary knob for easy operation of potentiometers. Product description: Rotary knob attachment for potentiometer Material: aluminum alloy Color: Black Diameter shaft opening: 6 mm Overall dimensions (diameter x height): 23 x 17mm Weight: 7 g Package Included: 1 x knob for potentiometer Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Material: aluminum alloy. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.