This is a Mirror Glass Replacement and to strict quality control standards. you clear view in the rain or fog days by this mirror glass with heated function, anti-dazzling, safety in driving at night. Smooth seamed edges for safe handling. Direct replacement for your original ones. Does not have the auto-dimming function. Glass Type: Wide Angle / Aspherical Functions: Heated Type: Operation Mirrors Part Number: Left:A1638102719 / Right: A1638102819 Diagonal Size: 19.5cm / 7.67 inch (Longest diagonal dimension from top corner to opposing bottom corner). Size: 17.5x12.8cm / 6.88 inchx5.03 inch (LxW) Fitment: for - W163 ML320 ML350 ML500 1998-2005 Installation Steps: 1. a crowbar to pry the old glass with the plate; 2. Unplug the pins which the old glass; 3. Put the pins into the new glass; 4. Put the plate align with the steering , and press it on the center. Material:plastic + glass colour:black Package Contents: 2 * Mirror Glass (Left + Right) Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.