This version of Post Its is really tiny, you have to see the measurements. But if it's all about a phone number or a few thoughts, he will do just fine. Difficult is the handling, because you do not really know what to do with the rest of the hand when writing.
I suppose the block apart easily and have thus also each color individually.
The adhesive surface holds as I said very good, even if one takes the piece of paper in the meantime and hinklebt elsewhere.
And the colors are really loud. In certain lighting conditions, the list even shine right that can not be overlooked.
I like them very well because I often need no list, I actually often have to write down telephone numbers or only one, two, three words. Since the small size enough for me. Who writes more, should select a different version.