[APPLICATION] Most used for Heavy-Duty equipment such as bed compartment, outdoor TV Cabinet, RV Bed,marine projects, Boat Bed, shell, Boat Bed,truck canopy, trap door, trailer door, trash bin, and other Heavy project. 100LB/445N per shock. Super Strong and stiff, you couldn't compress them by your hand!! Suitable for lids or doors weighing between 85 pounds and 110 pounds! [PREMIUM GAS ]: Our products are suitable for various harsh weather environments such as outdoor heavy rain and minus 104℉. for the Garbage Shed Lid, TV Cabinet, Under bed storage cover, Loft / cellar floor hatch door, Tool box lid, Truck canopy cover, DIY project, etc. Note:Due to different production batches, the color and style of accessories are random, and cannot be specified, which will not affect the use. Colour:Black & Silver Material:steel Package Contents: 2 * Gas Shock Strut Springs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.