This is a posable action figure from the Nendoroid series.
From the GoodSmile website:
From the anime series Blood Blockade Battlefront & Beyond comes a Nendoroid of the leader of Libra and user of the Brain Grid Blood Battle Technique, Klaus V Reinherz! He comes with three face plates including a standard masculine expression, an intimidating combat expression as well as a calm expression for more gentle poses. He comes with a knuckle guard and hand parts wearing gloves allowing you to easily pose him in combat scenes. Other optional parts include his business card, a donut and a brown paper bag. He also comes with a clear plate with text based on his character introduction which can be placed in front of him to capture the atmosphere from the series! Be sure to display him with the previously released Nendoroid Leonardo Watch and recreate your favorite scenes from the series!