Aromatherapy is a well known ancient practice that not only boosts your moods but heals as well. I'm a big fan of essential oils and have oil diffuser to fill my rooms with any given oil depending of my needs and not just because they smell good, thats just a bonus. But recently I've been making my own blends for my hair, face oils, relaxing blends and then just for scents. This bottles not just look beautiful with this cobalt blue color but it just keeps your oils from going bad. The roller top is perfect to apply a small amount on your desired area. They come with all you need to fill them except the oils of course, but the opener, the tiny funnel and extra balls in case you loose one. Ok can even fill them with your favorite perfume and the size is perfect for a clutch and toiletries bag when traveling.