Features: According to the original factory specifications. Easy installation. The seat paddle-valve control switch can work when two electric wires to compressor for on off control.Engineered with push to snap tabs for easy mounting in a hole on panel (not included). A relay-(not included) may be required to turn compressor on off. The air-spring activated switch is built into the manual paddle-valve switch, and when you push the paddle-switch up and down, you control the compressor relay-on and off. The switch-controls the flow of air from the tank-or compressor to the hanging-bag or pneumatic seat. Specifications: Material: Plastic+Metal Size:As Picture Shown Color:Black Fitment: for truck Package Includes: 1x Air Pump Control Switch Only the above package content, other products are not included. note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.