Brightly polished Stainless Steel and High R-factor polyurethane foam combine to produce a unique and beautiful Piston Head Koozie. Replicating an automotive piston head, yet light in weight, this way cool drink koozie is available with a choice of three different looks: BKG Logo, Hotrod Coupe or Vintage Motorcycle, laser etched on a metal tag in colors produced with bright, baked enamel. Makes a great gift for anyone (yourself included) who has ever busted a knuckle.