2-1/4" x 2-1/8" x 5/8" thick oscillating movement rotates 2-1/4" tall gold plastic ball unit #33882 (included) that sits on a 1-5/8" base. Oscillates back & forth every 5 seconds. Base mounts under the clock. This is not a timekeeping device. Runs on one "AA" battery which is not included. Can combine with #34202 (which spins in only 1 direction) for price breaks. Asia.