A Ding Dong is a chocolate cake produced and distributed in the United States by Hostess Brands and in Canada from Vachon Inc. under the name King Dons; in some U.S. markets, it was previously known as Big Wheels. With the exception of a brief period in 2013, the Ding Dong has been produced continuously since 1967. It is round with a flat top and bottom, close to three inches in diameter and slightly taller than an inch, similar in shape and size to a hockey puck. A white creamy filling is injected into the center and a thin coating of chocolate glaze covers the cake. The Ding Dong was originally wrapped in a square of thin aluminum foil, enabling it to be carried in lunches without melting the chocolate glaze.