This Ryomen Sukuna figure is released by Funko in their POP! Animation x Jujutsu Kaisen Vinyl Figure series.

POP! is a crossover vinyl figure series by Funko and other famous franchises such as Disney, Pixar, DC Comics, Marvel Comics, Star Wars, Simpsons, South Park, Uglydoll, etc. Each POP! figure is 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 Jujutsu Kaisen features characters from the popular manga/anime, which follows Izuku Midoriya, a boy born without superpowers in a world where they are the norm, but who still dreams of becoming a superhero himself, and is scouted by the world's greatest hero who shares his powers with Izuku after recognizing his value and enrolls him in a high school for heroes in training.