【Material】: The 90-degree foldale hinge is made of cold-rolled nickel steel plate with double-layer electroplating for stronger rust resistance. 【Design】: The shelf hinge is designed to fold at 90 degrees and can open at an angle of 180 degrees, which can help you organize furniture easily and save space. 【Advantages】: The 90-degree foldable hinge is easy to install and doesn’t require to drill holes. You only need screws to fix it. Besides, it has a strong supporting effect. 【Package】: There are 4 pieces of foldable door hinges in the package whose size is 68mm*80mm. 【Usage】: It can be widely used in door links and built-in cabinet hinges of camper furniture, cabinet doors, bookcase racks, folding table racks, etc., Manufacturer: DDHOMIN