ALWSCI 20 Pcs Sample Vials 4 mL Glass Bottles With Screwcap, PE Liner Containers Lab Vial Bottle Liquid Sampling Oil

High Quality Glass: These vials are made of clear Type 1 Class B borosilicate glass that features excellent chemical-resistance, thermal properties and clarity Black Screw Caps: All vials come with screw-on black Polypropylene caps & PE liner attached. The PE pad inside the plastic cap can form a tight seal to prevent liquid leakage and prevent air and moisture from entering the bottle Easy to Carry: Ideal for general laboratory use and storage of samples. These vials are Perfect for travel, and conveniently fits in your purse.An ideal smart container easy to carry for anywhere and anytime, not occupy your so much room Wide Range of Use: Ideal for general laboratory using sample bottle, reagents bottle, storing small amount of chemical solutions and fumes. Also can be used for cosmetic liquid, perfumes, Essential Oil etc. Sample Bottles Size: 15x45mm with Cap on, Capacity: 4mL; Remark: It is not scintillation vials, so the top of Styrofoam sealing layer that is not compatible with some solvents