Polished stainless steel Turbowing Aerolight is durable and rugged made with high quality construction and materials. Testimonials from owner/operators have shown an average fuel savings of approximately 10% up to 19%. That means the Turbowing pays for itself within 6 months for the average owner/operator. Pre-formed body panels reduce stress on rivets. Fixed angle brackets ensure the correct angle for deflection of air. Ideal size and function for all high roof, stand-up sleepers. 76"L x 26"D x 20"H. Conforms to industry height restrictions. Fits Freightliner Business Class models. Wing and mounting kit included.