Description:Product Name : Band Selector Rotary SwitchContact Type : 4Pole 5Position,2Deck； Pin Number : 24Fit Mounting Hole Diameter: 9.7mm / 0.38inch ; Rotating Shaft Dia : 6mm / 0.24inch ; Shaft Length : 11.7mm/ 0.46inchComes with mounting nut and black plastic knob, no worry about knob size mismatching.
eBay