Pole 3 Position, ceramic structure, easily turned. Comes with nut and black plastic knob, no worry about the knobs size mismatching. Widely used on radio, TV, industrial machine control unit, or other digital devices. Product Name: Rotary Switch : Metal, Ceramic, Plastic Rotary Shaft Diameter: 6mm / 0.24 inch Dimensions (knob not included): 25 x 12mm / 1 inch x 0.47 inch (Max.D x H) Fit Hole Diameter: 9mm / 0.35 inch Pin Number: 16 Contact Type: 4 Pole 3 Position (4P3T), 2 Bridge Net Weight: 104g />Package Content: 8 x Rotary Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.