This 100 ml option is the largest bottle we offer in the amber euro dropper style. Amber glass provides UV protection for light-sensitive components, assisting with keeping your products maintained when storing. The 100 ml glass bottle is paired with black tamper evident caps containing orifice reducers. When installed into the bottles, the orifice reducers allow gradual product dispensing. Once the cap is screwed completely on the bottle, the orifice reducer will remain snug in the opening, ready for use. The tamper evident ring will detach from the rest of the cap when the essential oil bottle is first opened for added security.