Extang 44940 Original Trifecta Trifold Truck Bed Cover fits Chevy/GMC Silverado/Sierra (6 1/2 ft) 99-06, 07 Classic (incl HD) Tri-folding, soft Tonneau cover design Quick and easy install or removal, no tools required Strongest frame of any soft folding cover, yet lightweight Improves Gas Mileage Made in the USA