High Quality: The flush mount picture hangers are made of high quality stainless steel, have good corrosion resistance and rust resistance, can be used for a long time. Excellent Safety: The interlocking picture hangers provide maximum safety to prevent the installed items from falling. They have countersunk screw holes at the same time to completely hide the screws and avoid damage to hands or pictures. Seamless Assembly: Two interlocking picture frame hangers fit perfectly and combine them into one. Easy Installation: All you have to do is connect two metal plugs to walls and objects in opposite directions and insert them into each other. The symmetrical screw hole design makes installation extremely easy. Wide Application: The furniture connector hooks are perfect for hanging frames, artwork, displays, clocks, and mirrors to add an artistic touch to your home and office.