Metal Art Studio Atomic Era Walnut Grey/White Decorative Wall Clock, Large Size/style: Large - 23H x 23W x 2D inches (tip-to-tip measurement.) 'midcentury modern' style starburst clock; requires 1 aa battery (not included.) Unique artisan techniques: cnc routed from maple plywood and reverse-painted acrylic, silent (non-ticking) continuous sweep clock movement Priceless peace of mind: made in the Usa, in our Cincinnati art studio. Includes certificate of authenticity, color & quality guarantee, and lifetime manufacturer parts warranty Simple hanging: lightweight material that hangs on drywall, wooden, masonry, etc. Using household nails, screws, or hooks with the metal clip and padded spacers on back. Clock will float about 1/2In off wall Finish/care: recommended for indoor placement. Artistic semi gloss finish on walnut plywood and reverse-painted acrylic. Wipe clean with soft cotton cloth, and if necessary, warm water and a mild hand or dish soap