Notched hangers are used to hang metal frames without using wire. The notched hanger is for smaller pictures to hang the artwork package on the wall. The advantage is that it is easier to install, eliminating the need for wire. Position the hanger in the middle of the top of the frame. Snap in to the channel (it can easily be snapped out also). The hanger can be adjusted by sliding it in the moulding channel. It is designed to hang from a nail or similar device.