Emblem is mounted on a POLISHED steel timing gear & chain set with a deep glossy protective finish. The clock numbers are CNC machined from billet aluminum. The finest timing gear clock you will find. Truly, a spectacular piece! The gear sets are around 7"x10"x1" & weigh just about 2 lbs. They all fit within a sheet of standard notebook paper. They are assembled with the hardware necessary for hanging. You will need one AA battery. Real steel automotive components. Gears are welded to the chain, so there are no moving parts. Don’t disappoint your automotive enthusiast. Be sure to buy their gift from Frost Auto Decor! Polished Steel Wall Clock Industrial Celestial Steampunk Brass Accents/Garage Mechanic Gift Man Cave Frost Auto Decor