 Bic Cristal

The Bic Cristal (stylised as BiC Cristal and also known as the Bic pen) is an inexpensive disposable ballpoint pen mass-produced and sold by "Société Bic" of Clichy, Hauts-de-Seine, France.It was introduced in December 1950 and is the best-selling pen in the world – the 100 billionth was sold in September 2006.