Gobstoppers, also known as jawbreakers in the United States and Canada, are a type of hard candy. They are usually round, and usually range from 1 to 3 cm across; though gobstoppers billed as having a diameter as large as 3.25 in (83 mm) have been marketed.

Roald Dahl was a British author of popular children's literature and short stories, a poet, screenwriter and a wartime fighter ace. His books have sold more than 300 million copies worldwide. Dahl has been called "one of the greatest storytellers for children of the 20th century".