Suspa C16-11028 C1611028, 12" Gas Prop, Quantity (2), Force 40 Lbs Per Prop, Force Per Set 80 Lbs,&nbsp;Camper Rear Window, Tonneau Cover Lift Supports, Window Lift Support, Struts, Made in USA Compressed Length (Center-to-Center): 8.3in (211mm) Extended Length (Center-to-Center): 12.2in (310mm) Force: 40 Lbs (178 N) (Per Prop) End Fittings: 10mm Nylon Ball Sockets Set of Two