Hard Material: Made of high strength sturdy metal, this hinge is corrosion resistant and durable for long term use. Hidden and safe installation: strong supporting capacity, with high toughness and durabilityEasy installation: the cover hinge is used for side mounting and top mounting. Simply mark two points for drilling holes and screw each mounting screw into its respective location. Adjustable gear: There are five positions to adjust, multi-angle, multi-range Through gear operation, change the handrail, side, pillow, seat and bed between angle adjustment. Convenient conversion: converts sofa into bed, converts armrests and seats. Intimate design, space-savingWide application: can be widely used for folding sofa, bed, cabinet door, etc. These adjustable hinges can adjust your sofa to a single bed, and can adjust the recliner, sofa, seat back, storage box cover or tatami angle. Or you can DIY your own furniture. Adjustment cabinet hinges are also suitable for most small repairs and basic DIY projects around the house. Kitchen cabinet door hinges are popular by repairers, construction workers, mechanics, body shops, etc.Product Name: Adjustable Corner Hinge for Sofa, Bed, Bed, Adjustable Corner Furniture Note: The data is all measured manually, please allow 1-3cm error, due to the difference in light and temperature. display, there will be a certain color difference, the actual object received shall prevail.