Euro-style caps insert an orifice reducer when twisted on.
These amber glass vials are the standard size for storing and using essential oils. The dark color protects contents from damaging UV rays. The Euro-cap has a built-in orifice reducer that snaps into place when you first twist it onto the vial. This helps control by drops the amount of oil you dispense.The vial is also sealed until you twist the cap off for the first time.
Contents:6 amber glass vials and 6 Euro-caps with orifice reducers.
Volume: 15 ml (~½ oz., or 1 T.) Container Size Comparison Chart
Note: From one package to another, caps may vary in style and orifice reducers may vary in height.