Toggle Switch(Reverse Polarity Switch);The toggle switch is momentary,this means that when the switch is released, it spring back to the intermediate closed position. The switch can control the forward and reverse rotation of the motor.Simply connect power and ground and two DC motor leads and the switch reverse the motor direction. Action Type:Momentary Pin:6 Position:3(ON)/(OFF)/(ON) Connector Type:DPDT Colour:Black Material:Plastic,Metal Package Contents: 1 x toggle switch 1 set x connecting wires 1 x up/down panel 1 x waterproof cap 4 x screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.