Velocity Concepts Sun/RAIN Guard Smoke Vent Shade Deflector Window Visors 04-08 Pontiac Grand Prix 2004-2008 Pontiac Grand Prix All Models Non-In Channel Type Window Vent Visor - ( Come As A Complete Set - 2 Front, 2 Rear ) Color: Dark Smoke Tint Function: Made of High Quality Reinforced Acrylic With Light Weight Design New & More Curvy Deisgn For Better Aerodynamic Purposes Better & Improved Quality Over Many Others In The Market UV-Resistant Custom Fit For Each Application In Shape Professional Installation is recommended. General Installation guide might be provided upon request