This Elite ventvisor is an in-channel mount with a low profile design that you install by 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. Made with a thicker, stronger and more durable material than other ventvisors on the market. It is 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.