21st Century Smoking is a large chain of small shops which retail electronic cigarettes and related accessories. The electronic cigarettes, or e-cigarettes, present a healthier alternative to smoking traditional cigarettes. Additionally, this alternative is not subject to local ordinances regarding smoking in public or indoors. Some of the store's featured products include e-cigarette models like The Blackjack, The Roulette and the Big Slick. The e-cigarettes produce synthetic nicotine smoke which is vaporized by an internal heating component. They can either be recharged and users can swap out expired nicotine cartridges, so the cigarettes last for an extended period of time.