Swarovski (; German: [svaˈrɔfski] ( listen)) is an Austrian producer of lead glass (commonly called crystal) headquartered in Wattens, Austria. The company is split into three major industry areas: the Swarovski Crystal Business, that primarily produces lead glass jewelry (commonly called crystal jewelry) and accessories; Swarovski Optik, which produces optical instruments such as telescopes and binoculars; Tyrolit, a manufacturer of grinding, sawing, drilling, and dressing tools, as well as a supplier of tools and machines. Today, Swarovski Crystal Business is the highest grossing business unit with a global reach of approximately 2,800 stores in around 170 countries, more than 27,000 employees, and a revenue of about 2.6 billion euros (in 2016).