Like another reviewer noted, the rubbery ring on the base of the stools will leave permanent discoloring rings on a hardwood floor. I purchased 3 of these stools and was horrified when I discovered the damage. Seems not to take long either- since people may move the chairs around a bit, I have groups of these rings on my 2 year old floor. Perhaps this will not be a problem if your floor is a dark color or laminate, but my floor looks just like the one in the product picture. On the plus side, they are comfortable for short sits and very easy to assemble. I was a bit concerned when they were delivered, since the boxes were pretty beat, but no damage to the parts inside. I find the quality inconsistent: each stool has a different amount of resistance to rotate. One rotates easily, one is almost impossible to rotate, and the third is just right.