Detailed Parameters: Extended Length A [in]: 19.7(500mm), Compressed Length B [in]: 11.8(300mm), End fittings Diameter: 10mm, Force: 20 lbs (89 N) Per Prop | Multi-scenario Usage: Mostly used on travel trailer door, RV door, motorhome door, compartment door, etc | Interchange number: lgp6-200-20qq, GN6-200-20-75MM, LGP6-200-20D1D1, LGP6-200-20QQ, LGP6-200-20QQ-15, LGP6D-200-20QQ, C1608568, C16-08568, SE197P20, SE197P20S10, SG359013, SG359013, GSNI-5300-20, WHCGS680200-20, SE812APE20, SL14-20, SX200P-20 | Precise Manufacturing: The gas struts sturdy, well-constructed and perform well, offering a controlled, gradual lift rather than a sudden jolt; With a 20lb capacity per strut, they provide enough support for heavy-duty lids | Application Range: ARANA 20 inch spring will be suitable for lids, with lid weight between 16-22 lbs, side length ≥ 32 inch, ensuring smooth lifting and secure hold; Note: do measure the lid weight or check the oem number to buy correct items | Easy to Install: Installation was straightforward, requiring minimal tools, replaced just by loosening the clip, pop the new one into place, and click it on | 18-Month Support: Every ARANA gas strut comes with 18 months replacement support, if any quality issues, buy wrong items or missing parts, please get in touch with ARANA team for in-time solution(No ball studs or mounting brackets included)