Command Canvas Picture Hangers make hanging your canvas prints, paintings and decorations quick and easy. It's as simple as applying the hanger to the wall, aligning your painting in place, and you are done! The small sawtooth ridge on the Command Canvas Picture Hanger grips into the canvas frame, or stretcher bar, providing extra grip and security. Best of all, when you are ready to take down or move your canvas pictures, they come off cleanly without leaving any nail holes or sticky residue.