3 pack standard 3.5 x 3.5 inch door hinges, with 5/8 inch radius corners and 6 screw holes, compatible with the majority of interior residential doors. | Made of high-quality steel with a matte black finished coating for rust and corrosion resistance. | Removable pins allow for easy installation or scrapping of doors within minutes. | Includes necessary mounting screws, no need for extra purchasing. | Suitable for bedroom, storage room, basement entrance, garage, bathroom, and other indoor doors.