1987-1991 Porsche 928 Flat, Driver Left Side Replacement Mirror Glass This glass measures 6 13/16 inches diagonally (Longest diagonal dimension from top corner to opposing bottom corner). Redi-Stick adhesive pads included, no need to buy additional adhesive. Exclusive Burco Authorized On-Line Distributor We are the only distributor able to give Burco Lifetime Guarantee Burco Trained Technical Support