Clock's construction and materials nearly identical to vintage clock. The Ball Clock is made of Ash wood and has a metal center. Made just like the antiques we found that were made over 40 years ago but updated with modern timekeeping mechanisms. One "AA" battery required (not included). MATERIAL：Wood & Metal Stylish clock to compliment your home décor Quartz Movement COLOR Multi Color as shown DIMENSIONS 13.5" Diameter 2.25" deep - Uses 1 AA Battery (not included).