Oompa-Loompas are fictional creatures feature in Roald Dahl's books Charlie and the Chocolate Factory and Charlie and the Great Glass Elevator. They come from Loompaland, which is a region of Loompa, a small isolated island situated in the Pacific Ocean. In the book, they are the only people Willy Wonka will allow to work in his factory, because of the risk of industrial espionage. They are only knee-high, with astonishing haircuts, and are paid in their favorite food, cacao beans.