A Pair of Camper Shell Cap SNUGTOP LEER Nitro-Prop Strut Spring Shock REP 22" extended length x 12.5 " compressed length x 119 LB Pressure Extended Length: 22" (center to center of ball socket ends) Compressed Length: 12.5" Force: 119 pounds of pressure (Per Prop) End Fitting: 10mm Ball Socket and 10mm Ball Socket Set of Two