Each pack contains 48 tabs. You have veier different colors (green, blue, yellow, orange). They consist of a fixed "Plastic Part", which ensures stability. On more than one-third is the colored area, which can be labeled. This is not covered up with plastic. therefore it has the possibility also an inscription by pencil.
A first test showed that you can carry a notebook or book easily multiply in the backpack, without changing the tabs are particularly bent or otherwise damaged.
They could also easily be several times abgezogern from the sides again and then stuck well on the new surface. So far I've tested seven reuses and could account for only a minimal decrease in adhesiveness.
Nevertheless, I regret to pull off two stars because the use of a book was not convincing. In spite of all precautions Anbziehen small particles of page mita were bgerissen and if the bearing surface for the tabs was color, a little color triggered. Because I want to use the register necessarily in books and this is not expressly forbidden by the manufacturer, I have to make deductions. From this perspective, the price is no longer justified in my view.
For me would be 5 form the ceiling and you should point out that redetachment from books must be done very carefully and not always carried out without residue.