The Wingmaster Whale Tail is a practical and versatile accessory designed specifically for high roof flat tops. With its universal size of 70" x 19", this stainless steel Whale Tail fits most makes and models. It is sold individually and offers a range of benefits, including improved aerodynamics and enhanced fuel efficiency. Easy to install and durable, the Wingmaster Whale Tail is a must-have for those seeking practicality and functionality for their high roof flat tops.