SUSPA 16" Spring Strut Prop Shock C16-19567 - One Pair - 45 LB Force Per Strut and 90 LB Per Pair - Made in USA Compressed Length (Center-to-Center): 10.2in (259mm) Extended Length (Center-to-Center): 16.5in (419mm) Force: 45 Lbs (200 N) (Per Prop) End Fittings: 10mm Nylon Ball Sockets Set of Two