The sofa drawer bed can be folded and connected with the spring hinge, and the soft closing folding cover keeps the hinge, galvanized steel, and the opening angle is 80, so that the storage space can be easily reached. One advantage of the bed box hinge used for the furniture function of bed, corner bench or sofa is that it increases the storage space. Especially the space under the bed is a waste of space. Through the folding accessories of the bed, it can revitalize your damaged sofa storage space. The lifting hinge of the bottom hinge sofa bed is installed on the side of the bedstead and attached below the slatted frame, and the furniture storage support hinge is invisible. The hinged recliner can be easily folded upwards, and it doesn't take much effort to lift the top hinge. Springs allow quiet and safe operation Shelf bracket hinge package: 1 pair of spring hinges (left/right), with adjustable spring mechanism without fixing screws, Weight: 2.425084882 pounds, Manufacturer: WANLIAN