✅ ARANA 20 inch Gas Struts C1608054 Lift Supports -- 2Pcs Set Force 100 Pounds 445N Gas Shocks , most SUITABLE support weight for 2 STRUTS is 85 lbs - 110 lbs, this means if your project lid is between 85 pounds and 110 pounds, this 100LB gas strut set is SUITABLE! | ✅ ARANA 20 Inch 100 Lbs Gas Spring Shocks -- Extended Length A [in]: 19.7(500mm), Compressed Length B [in]: 11.8(300mm), Interchange number: 6939, 6939S10, C1608054, C16-08054; measurement of the supported lid weight or of your old strut pressure is required to prevent purchasing wrongly! | ✅ C16-08054 Gas Props 20inch -- Direct replacement struts for RV bed, motorhome bed, tanning bed, camper bed, travel trailer bed mattress, queen bed, etc.; | ✅ ARANA C1608054 100 lb Lift Supports -- Customer will also use them on tonneau cover, heavy camper shell roof, tv cabinet door, trailer window, compartment door, floor hatch, truck cover, bar shed window, heavy custom build lid, etc; | ✅100% Satisfaction Service -- 18 Months Support comes with every ARANA product; If any questions before purchasing or dissatisfactions after purchasing or need installing/using guide, welcome to click "ASK SELLER" besides your order from ARANA for immediate assistance!