These are American made vials. The glassware is the lightest, strongest, and most chemical and heat-resistant lab glass available. They are the shorter stubbier type So that the 10 mil of media level is on the curvature of the shoulder, More durable and lighter in weight than molded vials/bottles and their special design adds strength for freeze-drying applications.

Supplied vacuumed sealed bag and sterile
These are for laboratory use only