Feature: 1. Electric Lifting: Dual motor drive, 4 way and pallet lift adjustment design, so that the driver can easily adjust to the most comfortable lumbar support during long driving. 2. Relaxing Lumbar: Easily adjust to the most suitable lumbar support and adjustment area, improve driver comfort and reduce waist pain and fatigue. 3. High Comfort: Designed for relieve waist pain due to long term driving, provides all round lumbar support and increases driving comfort. 4. Wide Compatibility: Suitable for most cars, RVs, business vehicles and other seat types, and can be easily adapted to exchange. 5. Fine Workmanship: The electric mechanical lumbar support is made of high strength plastic and metal materials, has stable structure, and can withstand large pressure. 6. Easy to Use: This product is electrically lifted and lowered, which is simple and easy to use, and can be adjusted with lumbar support without laborious operation. Specification: Item Type: Car Seat Back Lumbar SupportMaterial: Plastic, metalRated voltage: 13.5±0.2V No load current: ≤0.45A Stall current: ≤A Function: Lumbar support for car seats Adjustment Direction: Four way switch (four way adjustment) up and down and front and back Applicable: Suitable for cars, RVs, commercial vehicles, etc. Installation Instructions: 1. Before installation, please confirm whether the seat size matches the product size and whether the voltage meets the requirements. 2. Use tools to help open the car seat, find the power and power off. 3. Install the product inside the car seat 4. Connect the power supply of the electric motor to the power supply of the body, confirm it, and then replace it with the car seat. 5. Start the power, start the program, adjust as needed, and the adjustment is completed. Package List: 1 x Car Seat Back Lumbar Support1 x Wiring Cable1 x Adjustment Switch1 x Accessory Note: There are no manuals and screw fittings, and they need to be installed by a professional technician!