I first purchased these to use with my elementary school class, because they were cheaper than regular blocks. They stood up fairly well to of a bunch of first-graders, though some of them do have scraffito lines incised by their curious fingernails. Now I teach adults and we find these very useful for forward bends for the less flexible and also as hand and arm rests in twists and things like that. I had to order more because I've given some away and now more students want them.
Reviewed by: LauraRose from Eugene, OR.