This is the Action Former Proto Skeleton. This highly articulated minifigure stands at just a hair under 2" tall. The parts can be reconfigured into a multitude of different ways to form many different creations and body types. Different themed armor sets will snap onto this Proto Skeleton to create different characters.
For a closer 3D view, check out the model on Sketchfab
3.842 w x
0.7 d x
1.513 w x
0.276 d x