About this item. Package There are 120pcs D-ring photo frame hooks in the package and equipped with M3x15mm screws. MaterialThe frame hook is Made of high quality metal, corrosion resistant and durable. Easy to install There is only one screw hole and it is equipped with mounting screws. It does not require any complicated operation and is just installed directly behind the frame with a screwdriver. How to use After attaching the hook to the frame, you can hang the D-ring directly on the screws or wall hooks, or hang it with a sling tie on the D-ring. ApplicationThis picture frame hook can be used to hang pictures, postcards, posters, picture frames, mirrors, dots of crosses, oil paintings, posters, notice boards, etc. See more details.