Everyone knows it and I guess everyone uses: sticky notes. This product is a block of three fresh colors (classic yellow, green and blue) from the eponymous producer "Post-it". The individual list are about 5 cm long and wide, so it is the "mini-version" (at the Product pictures show you a little larger by the magnification). The adhesive effect is fine, perfect on paper, but naturally weaker on difficult materials and they can be removed again without residue. What is probably inevitable: in the upper part (where the adhesive sheet of the last sitting) is the caption (even with ink rollerball pen or felt-tip pen) more difficult and will not be liable as well. But I have never experienced any sticky notes block, where this is not so. Everyone needs to know if he wants to spend on this brand product with 400 sheets more than five euro itself - high fine is in any case!