I bought these blocks when my daughter was one year old and offered from time to time. They are not good in the hand and slip through the little hands, as they are very smooth and did not offer such as. Wachsmalbirnen a "grip surface". The quality of Malwachses I do not question that is very good, but I see no reason these blocks preferable normal crayons. Meanwhile, we have the blocks 7 months, and my daughter painted with crayons and wax painters, comes with the blocks but not clear and builds maximum turrets thereof or scratched the wax, but paint ?? No. Even for me or my children, the blocks are uninteresting, since what distinguishes them, namely a large painting surface is unrealisable. The paper contact is limited to two places, so that you can achieve a wide color space never, quite apart from the unpleasant feel of times. Therefore opens up for me personally no special benefits from these blocks