Since the color surfaces are not covered with plastic, you can easily label these with pen, pencil or permanent marker (etc ...).
Depending on the use of the registers, it makes sense to use a pencil. (So you can see the parts possibly reused)
Advertised is the fact that you can use the Registerklebchen several times, so the adhesive side can attach different sheets.
Whether that actually works permanently in practice, I doubt it. Move after the 3 times the adhesive surface significantly weaker.
Since I use the Registerklebchen for single use, I'm all in all satisfied.
A star's deduction for, in my view too high a price. Approximately 6 for 48 Klebchen I think coated ...
