I got these frosted blue 10 ml roller bottles with silver caps. They are stylish and hold the perfect amount of oil for on the go. They come in three parts, the glass bottle, the roller cap and then the silver cap. Once you fill the bottle with your oil of choice you push the roller cap in place with firm presser. Then when you can put the screw on silver cap.
Unlike other roller bottles I have used in the past these have a metal ball which I find rolls easier then plastic ones.
Special thanks to 2PM for my sample bottles to try for this review.