ITEM NAME:3P4T 3 Pole 4 Position Single Wafer Band Selector Rotary Switch Z 3 Pole 4 Position design, ceramic structure, easily turned. Widely used on radio, TV, industrial machine control unit, or other electronic devices. Fit Mounting Hole Diameter : 9mm / 0.35";Rotating Shaft Dia : 6mm / 0.24" Pin Number : 15;Dimensions : 2.7 x 3.8cm / 1.1" x 1.5"(Max.D*H) Material : Metal, Plastic;Net Weight : 17g.3 Pole 4 Position design, ceramic structure, easily turned.