The product is made of stainless steel, durable and corrosion resistant. The product has a bearing, which is quiet and smooth when opening and closing. These indoor door hinges can be installed in door frames, wooden boxes, shed windows, shutters, sheds, apartments, play houses, animal shelters, and other indoor and outdoor uses. Complete accessories, a variety of easy-to-install equipment. Can bear 70kg -80kg, Manufacturer: Shun Yingtong