[ 10 Inch Gas Struts ]: Force: 178N/40Lbs 10" per Strut, a pair of 2 shocks. Extended Length: 9.8", Compressed Length: 6.7". CANNOT compress directly by your hands [ 40lb Gas Struts ]: Interchange number: C16-18233 , 10379, C1609322, C16-09322, C1618233 , C1620553, C16-20553. Easy to install and widely applicable lift support struts, suitable for patio, topper window, underground hatch, boat, garbage bin cover, tool box lid, tent and other outdoor areas and so on [ Sentry Safe Replacement Strut ]: Fit the cover or door or lid which the SIDE LENGTH is MORE THAN 18 INCH. And your project weight is 28lb~44lbs for each struts. If you are not confirm the item is okay, pls Contact Us Before Purchsing [ Premium Gas Struts ]: Our products are suitable for various weather environments such as outdoor heavy rain and minus 104℉. As a excellent and reliable gas shock manufacturer, IAQWE always stand behind you to provide you with the strongest support [ What You Get ]: 2 x Gas Struts (no screw&bracket) 1pc x installation guide. IAQWE offers 12-months support and 24-hours online tool box gas struts for lid 10 in gas shocks lift supports master lift gas struts tool box hydraulic arms master-lift gas struts replacement parts for keter storage