In fact, it works very well, for the filling and four rubber nubs of the cat, which prevent slipping on the desk. The cat filling rustling and provides the necessary severity - in interaction with the pimples, the cat remains actually are, if you tear off a leaf. The fact that there is always only one sheet, for the special Postit ensures block, in which the individual sheets of paper stick alternately up and down, so that it acts like a concertina. What is also a small drawback, unfortunately, because you can actually use only this type of blocks. In the belly of the cat also still sits a button with a spring, which ensures that the sheets are permanently pressed against the paw of the cat and it therefore can not fall out.
For me, a well-designed product that actually works and a nice idea for an unusual gift - not only for cat lovers.