18.5" 40Lbs/178N Universal Gas Spring Shock Struts Lift Supports for Lid Stay Prop Replacement for Camper Shell Shocks, Canopy, Tool Box, Truck【Product Parameters】-- Compressed Length (Center-to-Center): 10.7", Extended Length (Center-to-Center): 18.5", Force: 40Lbs/178 N (Per Strut)【Easy Installation】-- Instructions Included, Screws Included.We have installation quick guide for you. If you have question about the strut force…