The Malone Zephyr Wind Fairing deflects and reduces wind noise while you're traveling. This fairing is aerodynamically designed to move air up and over the car top's rack system. Made from high-density polycarbonate for years of worry-free use. This auto accessory from Malone includes universal mounting attachments for most round, square, and factory oval crossbars and 4 non-abrasive bottom feet to anchor the blade and protect the vehicle. Tool-free installation. Mfrs. limited lifetime warranty. Reduces air drag and quiets wind noise Made of high-density polycarbonate Universal mounting attachments Non-abrasive bottom feet