This hand is to scale and can fit a human hand inside. The model is a little bit low poly but this is due to the obscene amount of triangles requires to smooth a human hand. If someone makes a full triangle model let me know!
The coloring is due to me hydro-dipping the hand in spray paint after printing. It turned out pretty good, and now I just use it as a desk display since it stands upright.
The author hasn't provided the model origin yet.