ALWSCI 20pcs 10mL amber glass sample vials 18-400 black closed top PP cap, PE liner sample container laboratory vials 22×52mm

["High-quality Glass: These bottles are made of amber Borosilicate Glass Type 1 Class B, known for its excellent chemical resistance, thermal properties, and clarity","Black Screw Caps: All bottles come with black Polypropylene and PE film screw caps. The PE pad inside the plastic cap can create a tight seal to prevent leakage of liquid and entry of air and moisture into the bottle","Sample Bottle Size: 22×52 mm with cap on, Capacity: 10 mL; These sample bottles are perfect for travel and fit easily in your handbag. With a screw cap, good seal, avoid leakage; An ideal smart container easy to carry anywhere and anytime, not taking up much space","Wide Range of Uses: Ideal for general laboratory use with sample bottles, reagent bottles, for storing small amounts of chemical solutions and vapors. Great for storing liquids, powders, samples, etc","Package Included: 20 pieces of Borosilicate glass bottles, 20 black PP caps. Sealed packaging, more hygienic and safer; Widely used in the chemical industry, pharmaceutical industry, and scientific research laboratories"]