Thumb Click Reversible Cap Vials are specially adapted for storing moisture-sensitive materials, such as pharmaceuticals and other chemicals. The container necks and closures preferably feature a pair of endless beads that provide a moisture barrier, eliminating the need for supplemental cap liners.

The closure is reversible between a child-resistant configuration and a non-child-resistant configuration, e.g., by snapping the closure onto the neck of the vial and rotating it so that the gate opening 4 of the vial neck finish mates with the radial bead opening 8 of the closure gate 8. The CR side of the closure aligns with gate opening 4, while the NCR side of the closure aligns with reference mark 10 on the vial.

Thumb-click reversible cap vials have several advantages. They are easy to use and the thumb click mechanism makes it easy to open and close the vial with one hand. The cap can be flipped over to either use as a snap cap or a screw cap. This provides flexibility in how the vial is used.

They are securely sealed and the cap forms a secure seal to prevent leakage and contamination of the contents. The vial is made of clear plastic, which allows for easy visibility of the contents.