This is a posable action figure of a character from science-fiction/anime.
Here's another well-engineered transformable mecha from Studio HalfEye, this time featuring Mightgaine from Sunrise's popular Yuusha anime series! This set includes 3 trains that can be combined to form Mightgaine and stands at 12cm tall. The white train that forms Mightgaine's left arm can also be transformed into robot mode. Mightgaine's sword, shuriken wheel, and interchangeable hands are included. Full colored instructions booklet is provided but all text in Japanese.