The Genuine BMW Rear Window Shelf Roller Sun Blind (Anthrazit) is a retractable sunshade designed specifically for the rear window of BMW vehicles. It is made from high-quality materials and has a sleek anthrazit (dark grey) color. The sun blind can be easily rolled up or down to provide shade and privacy for passengers in the back seat. It is an official BMW product and is compatible with various BMW models. This sun blind is a practical and stylish addition to any BMW vehicle.