I was given most of these rocks as a birthday gift after putting them on my Amazon wishlist several years ago. I can not locate the original listing.
Stimieness 4/10 this is a decently nice stim when it's what I'm looking for, maybe as something to ground myself with, but it's generally not what I need.
Durability 8/10 I was able to break some of my rocks by throwing them at the floor, but it took a conscious effort.
Messines 7/10 the rocks don't really get any messier when they break, but they're small and can get all over the place and lost.
Noise 2/10 my rocks tend to make loud sounds when they bump against each other, but the noise they make doesn't bother me.
Category Rub and Squash I like to put my hand in the box or rocks, which provides some pressure, and they also feel nice and smooth, as well as making a nice sound.
Overall 6/10 I definitely like to have them, and I use them sometimes, but not very often, as they're very impractical to use outside of my room. I also don't use them very often, because they are not usaly what I want, but I don't regret requesting them.