Review of the Magic Rub Eraser

This eraser is very good at getting rid of graphite, but as for India Ink pen, it works best before the ink has dried to get a grey color. The other thing you need with this is a white India Ink pen to get rid of unwanted smudge marks.
Here is one thing you can do with it, make a work of art look like this :

Husky laying down

instead of this :

Lab next to Water