This Michael Myers vinyl figure is released by Funko in their POP! Movies x Halloween 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! Movies x Halloween series features characters from the horror media franchise that focuses on serial killer Michael Myers, who was committed to a sanitarium as a child for the murder of his older sister, Judith Myers. Fifteen years later, he escapes to stalk and kill the people of the fictional town of Haddonfield, Illinois while being chased by his former psychiatrist, Dr. Sam Loomis. Michael's killings occur on the holiday of Halloween, on which all of the films primarily take place.