????? ????????? 10" Gas Props are designed for a perfect fit on standard aluminum toolboxes and camper shell side doors or windoors. Each gas strut features an extended length of 10" and a compressed length of 6.7". It delivers 45lbs of pressure per strut. With a total pressure of 90 pounds for the pair, these toolbox struts are suitable for your standard aluminum toolbox or camper shell windoor. These gas props are compatible with popular brands such as UWS, DeeZee, Better Built, and Husky, providing reliable support for lids measuring 16-20 inches front-to-back. Ensure a perfect fit by measuring from the center of the ball mounts rather than end-to-end. Our automotive replacement shock lift supports are made from high-quality materials. These gas struts are built for regular use while maintaining performance. The package includes two heavy duty gas strut and four ball mounts. These truck cap struts are easy to install. They allow you to quickly replace old or failing struts without needing professional help. Before ordering, measure your existing struts to ensure compatibility. These gas struts are suitable for medium-weight applications. With versatile use, reliable performance, and easy installation, Truck Upfitters Gas Struts offer an all-in-one solution for your standard aluminum toolboxes or camper shell windoors.??? ????????:Includes 4 ball mountsProvides 45lbs of pressure eachSmooth, consistent lifting actionQuick and simple installation processLong-lasting and reliable performanceDesigned for medium-duty applicationsPerfect for standard aluminum toolboxesNot suitable for steel or heavy-duty toolboxesComaptible with UWS, DeeZee, Better Built, and HuskyNote : Check lengths and pressure before ordering. these measurements do not fit all toolboxes or camper shells! measure from center of ball mount to center of ball mount, not from end to end of strut!