Scosche Nav-Mat in-dash Mount with weighted anti-skid base for GPS devices Turn your windshield mounted GPS device into a dash mounted GPS device. The Nav-Mat Combines the physics of weight distribution along with high tech anti-skid materials creating a solid mounting base for your window mounted device. The Nav-Mat contours to the top of your dashboard allowing it to work on uneven and textured surfaces and the anti-skid undeside keeps your device from sliding. The Nav-Mat works with devices up to several pounds using the windshield suction mount that is sold with most popular GPS devices. With a no fastening and no tools installation the Nav-Mat can easily be moved from vehicle to vehicle and keeps your GPS in close view