I'm using these to make my own personal perfume from essential oils for my purse.
Exactly what I thought it would be.<br /><br />I ordered a different set before, and they weren't dark enough. These were dark enough, could be darker but better than most.<br /><br />The roller part worked easily. It was hard to push the top in, but I want it that way so it doesn't leak in my purse.
Rating: 5 stars