Suspa C16-08053 C1608053 20" Gas Prop, Quantity (2), Force 80 Lbs Per Prop, Force Per Set 160 Lbs,&nbsp;Camper Rear Window, Tonneau Cover Lift Supports, Window Lift Support, Made in USA Compressed Length (Center-to-Center): 11.8in (300mm). *Extended Length (Center-to-Center): 19.7in (500mm). Force: 80 Lbs (356 N). End Fittings: 10mm Nylon Ball Sockets. Set of Two.