Heavy-duty zinc alloy construction: precision-cast from thickened, high-grade zinc alloy for a solid overall shape and exceptional load-bearing capacity. Designed to be strong and firm for long-lasting support in demanding applications. Smooth gas-assisted operation: gas prop / gas shock strut spring provides controlled opening and closing, reducing sudden drops and improving safety and user comfort. Precise fit and secure mounting: accurately positioned mounting holes and a larger contact area with the cabinet improve stability and reduce play after installation. Ideal where a secure hinge connection is required. Versatile replacement and retrofit: suitable as a direct substitute for worn or broken struts and hinges on floors, RV beds, door lids, truck bed covers, and kitchen cabinets. Works with a variety of common cabinet and lid configurations. Quality workmanship and reliable performance: attention to manufacturing detail delivers consistent function and a satisfying user experience over time. Typical applications RV and camper beds: support and smooth operation of fold-down or lift-up bed frames, with stable attachment points that reduce movement during travel. Kitchen and utility cabinets: lift and hold upward-opening cabinet doors and lids, providing controlled motion and easier access. Truck bed covers and floor doors: replace damaged struts to restore secure, dampened opening and closing of bed covers and floor access panels. What this solves Eliminates sudden slamming and uncontrolled drops. Restores support to damaged or worn strut assemblies. Improves safety and ease of use for lids, doors, and covers. Note on compatibility Intended for use as gas prop struts, gas shock strut springs, cabinet hinges, and similar applications listed above. Confirm mounting hole pattern and required stroke/force for an exact fit before installation.