10pcs Roller Bottles for Essential Oils, 10ml Pink Glass Roll-on Bottles Perfume Vials with Stainless Steel Roller Ball & Funnels & Opener

There are lots of options for glass bottles with roller balls. I use them for many things because I make oils for naturopathic care and these are an ideal way to administer them. Generally, I purchase either amber or blue to protect the quality of the oil. However, sometimes there are things I do that can simply be stored in something pretty. And these are so pretty! I just love the pink bottle and it will be so nice to carry such a lovely bottle in my purse.The balls roll freely, but I haven’t had any issues with leakage, so I think there’s a good balance there. However, the one complaint I have is that these are packaged with the roller balls already assembled in the bottles. The reason this is a problem is that before you can fill the bottles, you need to use the remover tool and pry the top off. Then, you fill and replace the roller ball top. Now, these are made of plastic with a metal ball and I can say from experience that the more they are taken in and out, the looser they become. This is going to eventually lead to leakage. I really wish these had simply been included so I could attach them myself instead of having to pry them off before I get started filling them.