Made of polypropylene. Conical bottom with self-standing base graduated from 10 to 50ml in 5ml increments. Chemically resistant and shatterproof. Supplied with a leakproof screw cap, particularly important when transporting hazardous material. Ideal for transport and storage of urine, sputum and most liquids or particulate samples. Molded-in graduations make them easy to read. Functional temperature range is -90C to +121C.