Create beautiful windows with The Window Wonder, a snap-together window frame for most miniature Christmas light sets that you size to your windows. Notches within the frame are designed to hold miniature Christmas lights in most sizes any length of string. The frame is secured between the window sill and top window jamb, allowing no staples tacks or tape to mar your woodwork. Once you create your own customized frame to fit your windows, holiday decorating will be a snap each and every year.