Function - This lift supports is universal, it can helps your RV cabinet open slowly and safely by controlling the drop rate of the gate,run more smoothly than the original one, operate quietly and enhance the support ability when the RV cabinet is opened, save your effort during opening and closing, allowing for safe and smooth opening and closing even with an armful of stuff. Means you don't have to do a series of movements to keep your RV cabinet open, you free your hands. Vehicle Fitment - Compatible for RV, car, bus and other vehicles and you can use the gas spring on your tool box lid, truck box, RV cabinet, Toy box, storage box lid, boat hatch lid. [Durable Material] Made of durable materials, good characteristic, stable performance. premium metal end bracket, corrosion-resistant and high-temperature resistant, high strength leak-proof piston seal, enhanced reliability and durability, which offers the item longer life time in extreme conditions. Purchase with assurance - 365 Days of Unrestricted Mileage GuaranteeWe work hard to give you a positive shopping experience because we genuinely care about your satisfaction. Please don't hesitate to contact us with any more questions. [8 inch Lift Support Struts 250N] Force: 55lbs/250N(Per Strut), 2 struts is 110 lbs/500N. Extended Length: 21cm / 8.27'', Compressed Length: 15.5cm / 6.10'', Total Length: 21.5cm / 8.46'', Rod Length: 5.9cm / 2.32'', Housing Diameter: 18mm / 0.71'', Connecting Rod Diameter: 8mm / 0.31", Hole Size: 10.2mm / 0.40''.