Have these post-its now used frequently and on various substrates - adhesion is below average, on the same day they fall off in rows, a draft or even a strip in passing not tolerate these post-its, unfortunately. The color variety is great, the concertina logic - if you come so rightly - but the primary purpose of these colorful pieces of paper happens to be to stick to anything for sure and that they do unfortunately not very reliable. I would recommend this product to buy a second time.
