Easy Installation, the use of gear opening and closing position card design, multi-angle, multi-range. Through the gear operation, change the handrail, side, pillow, seat and bed between the angle adjustment. Spring hinges can be widely used in folding sofas, beds, lifting cabinet doors, etc. The hinge is made of stainless steel and is . High-quality sofa bed hinge, premium metal, strong load capacity. Smooth movement, easy installation, stable support. Perfect for sofa bed, folding sofa and furniture repair., Manufacturer: BgnEhRfL