They were quite expensive and I'm disappointed that one of them fell apart and leaked right ...
I bought these roller bottles after reading many reviews of others. They were quite expensive and I'm disappointed that one of them fell apart and leaked right away.  The roller ball simply fell out.  It's inconvenient to pursue the replacement of one bottle but I need all six of them for specific essential oils.  Also, I don't trust the quality of the remaining five and have invested in very expensive essential oils. I recommend buying less expensive ones since these highly touted ones did not live up to the quality that they extolled .
Rating: 3 stars