This Smoke ventvisor is our signature ventvisor and most popular on the market today. Customized design mounts in minutes to the outside of your vehicle using pre-applied 3M adhesive tape which creates a perfectly snug and secure fit while letting the fresh air in and keeping the rain out. Also great for helping to keep the sun out of your eyes and allows you to keep your window cracked which will help keep your interior cooler. For 1992-2011 Mercury Grand Marquis, Does Not Fit Models With Landau Roof