The Extang Revolution Tonneau is the ultimate in style and innovation. Th Extang Revolution roll-up truck bed cover features a groundbreaking design! The Revolution Tonneau is Extang Engineered to provide incredible protection through all weather conditions. The spring-loaded bows conveniently roll up within the tarp when the tonneau is not in use, and the ultra-low profile design provides a stylish, near-flush fit. An integrated multidirectional tension system applies constant tension for a tight, crisp tarp and a perfect fit!