This is a posable action figure from the Nendoroid series.
From the Good Smile Company website:
From the popular anime series "HIGH SCHOOL FLEET" comes a Nendoroid of Wilhelmshaven High School's Wilhelmina Braunschweig Ingenohl Friedeburg - also simply known as Wilhelmina! She comes with three face plates including a standard expression, a shouting expression as well as the frowning expression she made when given natto in the series.
Optional parts include a binocular telescope with its stand which can be displayed together with the parts included with Nendoroid Akeno Misaki to bring out the atmosphere of a ship's bridge even more! She also includes both the eintopf and natto dishes allowing you to recreate all sorts of different scenes from the series!