Black Polypropylene Caps - All vials come with screw-on black Polypropylene caps & PE liner attached. The cap finish : clear glass 13-425 thread.
Amber glass helps to protect against harmful rays from the sun.keeps liquid fresh,prevent liquid volatilization.
Easy to Carry - Perfect for travel, and conveniently fits in your purse. With screw cap, Good sealing, avoid leaking.
Application - Ideal for general laboratory using sample bottle, reagents bottle, storing small amount of chemical solutions and fumes. Also can be used for cosmetic liquid, Essential Oil etc.