These frosted glass roll on bottles work great for using essential oils. They look really nice and are going to be great for my homemade Christmas gifts. They are very easy to use and reuse. My only con is that I would prefer more oil to be dispersed. I am using these to make different roller bottle gifts using lavender oil for the smell and relaxing quality mixed together with a carrier oil. I am also using it with peppermint oil/carrier oil for people who get frequent headaches and my favorite is with Deep Blue/Carrier Oil for muscle soreness after an intense workout. I have purchased other roll on bottles but I prefer the looks of these much better. For more information: https://www.amazon.com/gp/product/B00SSFPU68/ref=oh_aui_detailpage_o05_s00?ie=UTF8&th=1