10pcs 6mm Dia Light Lamp Dimmer Control Rotary Knob Cap Gold Tone Product Name : SwitchKnob;Shaft Hole Dia. : 6mm/ 1/4" Overall Size : 30mm x 17mm/1.2" x 0.67"(D*H);Material : Plastic, Metal Color : Gold Tone Weight : 81g Package Included : 10 x SwitchKnob