This Zuko vinyl figure is released by Funko in their POP! Animation x Avatar: The Last Airbender vinyl figure series.
Funko POP! is a crossover vinyl figure series by Funko and other famous franchises such as Disney, Pixar, DC Comics, Marvel Comics, Simpsons, South Park, Uglydoll, etc. Each POP! figure is about ~3" to ~5" tall and crafted in a Japanese anime/manga super-deformed style (NOTE: due to the unique design of each character, the actual size of the figures may be smaller or bigger than stated).
The POP! Animation x Avatar: The Last Airbender features characters from the American animated TV series that is set in an Asiatic-like world in which some people can manipulate the classical elements with psychokinetic variants of the Chinese martial arts known as "bending". The series is presented in a style that combines anime with American cartoons and relies on the imagery of East/South Asian, Inuit, and New World societies. It follows the protagonist, 12-year-old Aang and his friends, who must bring peace and unity to the world by ending the Fire Lord's war with three nations.