Features: Made with durable materials, this control unit ensures long lasting performances and reliability in various environments. Idealfor automotive repairs and replacements, this control unit is perfect for RVs owners and professionals in need of a reliable solution. Ensure the smooth operation of your RVs step control system with this control unit, suitable for maintenance and replacement scenarios. The control unit automatically extends and retracts the step when the RVs door is opened and closed. Automatically stops the step if it strikes an obstacle. The ignition override feature is a safety feature that will retract your step if it senses the ignition of the RVs. This way, if you forget to stow your step, they automatically retract to prevent damage while traveling. Specifications: Material:Plastic+Metal Size: As Picture Shown Part Number:909510000 For Kwikee IMGL/9510 For the series 22, 23, 24, 26, 28, 30, 31, 32, 33, 36, 37, 38, 39, 42, and 47. Package Includes: 1 Set Electric Step Control Unit 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.