Extang, Inc. manufactures America's number one selling pickup truck bed tonneau and tonno covers, pick up truck accessories, since 1982. Extang engineers created the "No Damage, No Drilling, Clamp-On Aluminum Frame" tonno pickup truck bed cover systems. We care about our tonno truck cover customers and understand how much you love your pickup truck. That leads us to design and build only the finest tonneaus - tonnos, backed by the best warranty in the automotive industry. The Extang Warranty has you covered longer than most pickup truck owners will own their pick up trucks. So why worry? Our Extang tonneau truck cover customers receive a Lifetime warranty on the tonneau truck cover, tonno pickup truck frame and 10 Years limited warranty on any of our tonneau - tonno pick up truck bed covers and tonneau truck bed cover tarps.