Z-Design Picture Hangers 3732 30mm white 8 pcs/pack: Do you want to hang a picture, frame, or plate on the wall? We have the solution for you! The Z-Design picture hangers are made from a particularly sturdy material. The backing material only needs to be moistened and adhered to a grease- and dust-free surface, then left to dry without weight for about 2 hours. A simple and cost-effective solution!.