This industrial-quality reagent bottle with 30mL capacity has a narrow neck and leak-proof screw cap. Perfect for storing chemicals, liquids and powders. Both the bottle and screw cap are made of high quality, rigid high density polyethylene plastic that is UV-resistant. Excellent chemical resistance to acids, alcohols & alkalis, and very good resistance to aldehydes and hydrocarbons. Bottle and cap are both top rack dishwasher safe. Bottle measures 2.4" tall and is 1.4" in diameter.