This Katuschen rich with me more than one semester! And in the time (half a year) so get a few pages together.
Side note: as soon as the expression faded stripes shows. Katusche take out and swing slightly back and forth. So the color spread again and you can re-read the entire page.
The price of course suggests Tintendrucker far. Especially because one of the little money rather can print!
Highly recommended!