This is a nice addition to your Mercedes-Benz....not only does it provide function by not letting your glasses slide across the dash or your seat, but it provides beauty by matching the interior wood of your vehicle. It will attach at different locations on your dash. Product is black felt lined and has 3M tape already attached on the back for easy installation. Eyeglass holder opening is 7-1/2" across, 1-1/2" wide, 1-1/2" deep. Small glasses such as readers typically fit completely inside the holder without peaking over the top. Oversized sunglasses will standup above the edge as pictured.