Product name: Waterproof Momentary Reverse Polarity Switch;Model: KCD4-223-RET/EXT;Action Type: Momentary Color: Black;Position: 3(ON)-Off-(ON);Pin Quantity: 6;Switch Rated current/voltage: 16A 250V AC 20A 125V AC Switch size: 34x28x38mm/1.34''x1.1''x1.49'';Hole size: 34x28mm/1.34''x1.1'';Wire length: 21.2cm/8.3'' The polarity reversing switch can control the positive and negative rotation of the motor by connecting the power and ground and the motor "and","-". The DC motor will reverse the motor direction with switch when hooked red to and V DC and Black to - V DC Blue to Motor.Simply connect power and ground and two DC motor leads and the switch will reverse the motor direction. Package Content: 1 x reverse polarity switch and 6 x wires Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.