This is a posable action figure from the Nendoroid series.
From the GoodSmile website:
From the popular anime series "Love Live!" comes a Nendoroid of the responsible, confident member of Muse, Eli Ayase! She has been sculpted wearing her outfit used in the song "Bokura wa Ima no Naka de."
Eli's standard face shows off her confident smile, and she also comes with another smiling expression which can also be used as a singing expression! She also comes with a large number of parts that allow you to recreate the dance moves from the opening theme of the first season! Be sure to display her together with the previously announced Nico Yazawa, Honoka Kousaka and Kotori Minami, and other upcoming members of Muse!