Shake Shack Inc. operates roadside burger stands. The Company serves an American menu of burgers, hot dogs, crispy chicken, frozen custard, crinkle cut fries, shakes, beer and wine, among others. The Company's signature items are its all-natural, hormone and antibiotic-free burgers, hot dogs, crispy chicken, crinkle cut fries, shakes and frozen custard. Its menu focuses on food and beverages, crafted from a range of classic American foods. The Company's domestic menu includes a range of signature items, such as the ShackBurger, SmokeShack, Shack-cago Dog, 'Shroom Burger, seasonal frozen custard, hand-spun shakes, concretes, ShackMeister Ale, and Shack Red and Shack White wines. As of December 28, 2016, it had 114 Shacks in 13 countries and 16 states, as well as the District of Columbia. Its burgers are made with a whole-muscle blend of all-natural, hormone and antibiotic-free Angus beef, ground fresh daily, cooked to order and served on a non-genetically modified organism potato bun.