Automatic Self-Closing Door Hinges

FEATURES 【Self-closing Door Hinges】 - Do you often feel like you left the door open? Forget to close the door when your child leaves the house? It's not convenient to close the door when you are carrying something? With self-closing door hinges, you no longer have to worry about these problems, the door will automatically close behind you. 【Stainless Steel Door hinge】 - Self closing door hinge is made of 304 stainless steel, built-in spring for automatic closing, the surface has brushed treatment and black plating treatment, very rust-resistant, corrosion-resistant, high temperature resistance, a single hinge can support at least 35 kg / 77 pounds, these high-performance hinges are made for long-term use. 【4 inch Hinge Application】 - Self-closing door hinges are suitable for apartments, hotels,offices, hospitals, old schools,dormitories, living quarters, companies, kindergartens, nurseries, corporations, police offices/stations, stores,classrooms, libraries, palaestra, util