10pcs 6mm Hole Dia Light Lamp Dimmer Control Rotary Knob Cap Gold Tone Product Name : SwitchKnob;Shaft Hole Dia. : 6mm/ 1/4" Overall Size : 14mm x 15mm/0.55" x 0.59"(D*H);Material : Plastic, Metal Color : GoldTone Weight : 22g Package Included : 10 x SwitchKnob