HGTWFM: HG #09 Demi Trainer 1/144 scale model kit.
From the The Witch from Mercury series.
 
The Demi Trainer used throughout the school is now available in HG!
The neck can be pulled out to expand the range of movement, and the ball joint at the waist has a structure that provides space for forward and backward leaning postures. The range of motion of the arms is expanded by pulling out the shoulders. The forearm is also equipped with a movable rotation.
 
Assemble required. 
No glue is required for assembly 
Hobby nippers are required (Sold separately) to remove parts from runners.