Moving gears. Snap-on assembly. Sweep-mode second hand. On/off switch for gear movement. 7.5 in. W x 22 in. L x 24 in. H This large wall clock features visible moving gears. The gears are made of plastic with a chrome finish and their movement can be turned off with a pull switch if so desired. The clock also features a large red sweep movement second hand. A large plastic spiral bezel with a semi gloss silver finish measures approximately 23 inches in diameter. Numbers every quarter hour is also indicated. The clock body dimensions are 21.75 inches by 8 inches by 7.5 inches. Precision timing is kept with quartz crystal. The clock is powered by 2 D batteries (not included) and includes a 1 year limited warranty. Minor assembly is required without tools is required.