Plastic

Reagent bottle is a type of laboratory glassware used for storing and dispensing chemical reagents. Reagents are substances that are used in chemical reactions or laboratory analysis to produce a chemical change or to detect, measure, or test other substances. Reagent bottles are specifically designed to safely contain and preserve these reagents.
Reagent bottles are typically made of glass, although plastic versions are also available for certain applications. Glass reagent bottles are preferred because they are chemically inert, meaning they do not react with most chemicals and do not contaminate the reagents being stored.

1.5 ml 150 ul-250 ul 2 ml clear vials with plastic bodies and micro glass vial inserts are commonly used in laboratory settings for sample storage and analysis. These vials offer a combination of the clarity and durability of plastic vials with the inertness and chemical resistance of glass inserts.