TurboWing 900 Series was originally developed for the lower roof flat-top style sleepers where the height of the trailer was significantly taller than the roof of the truck. The design gives bold, sharp looks and works extremely well at increasing fuel mileage by approximately 10%. Wing body is mirrored polished stainless. Drag-wind resistance reduction is 30%. Dimensions: 76″L x 30″D x 30″H. Fits most flat-top sleepers. Brackets not included. Call for pricing. Sold by each.