100% brand new and high quality. Durable, stable, high sensitivity. A perfect aftermarket replacement. Material: Plastic + Metal. Placement on Vehicle: Front, Rear, Left, Right. Reference OE/OEM Number: ANR4687, ANR4686. The Compatibility Is Just For Reference. Please Compare With Your Original One Before Purchasing! 4 x Air Suspension Height Sensor (Front+Rear, Left+Right). Manual measurement, there may be an error of 1-3mm, please forgive me, thank you! Because the display on the website may be slightly different from the actual product display, but we guarantee that the style and the picture are the same, please understand, thank you! Please check the description or use the year/make/model check finder and replace part numbers to confirm the compatibility before purchasing. Our aim is to provide Top Level Customer Service, so we will try our best to solve any problem. We accept return within 30 days since you received your package.