This is a posable action figure from the Nendoroid series.
From the Good Smile Company website:
From the popular volleyball manga series with an equally popular anime, "Haikyu!!", comes a Nendoroid of the Karasuno High School Volleyball Club's pinch server - Tadashi Yamaguchi! He comes with three face plates including a standard expression, the serious expression he had when performing his well-practiced jump float serve as well as a smiling expression.
The Nendoroid allows you to recreate a number of memorable scenes from the series and also comes with a volleyball as well as a special base made in the image of a volleyball court. He also comes with a his favorite snack, floppy fries! Be sure to display him with the other characters from the series and create all sorts of fun situations in Nendoroid size!