. Made of high-quality materials for maximum durability and reliability. Seamless fit for your car. Easy to install, no complicated tools required. Professional workmanship with a refined and unique design. Type: Sliding Door Electric Contact Switch Part Number: A6398200654, A6398200311 Fitment: for W447, W448, W636, W639, W907, W910, 447, 448 Note: Installation guide not included. Professional installation is strongly recommended. Please verify compatibility to ensure the item meets your requirements. Product may vary slightly between batches, including minor differences in color or appearance, which do not affect functionality. Color: As shown Material: ABS Package Contents: 2 x Sliding Door Electric Contact Switch Note: Light reflection and display settings may cause slight color variations between the image and actual item. Measurement error allowed is +/- 1-3 cm.