Command Canvas Picture Hangers make it easier to hang your canvas prints, paintings and decorations instantly. Once the Canvas Hanger is applied to your wall, you simply have to place your canvas picture on the canvas hanger for the perfect picture. The small sawtooth ridge on the canvas hanger grips into the canvas frame, or stretcher bar, providing extra grip and security. It's designed in such a way that you do not need to drill or make holes in your walls. It's easy to use and remove.