Laboratory plasticware consists of objects that include pipette tips, centrifuge tubes, microplates, sample vials, beakers, and storage bottles. The materials used to produce these devices are tough and include polypropylene and polyethylene. These tools help in the storage and handling of samples. These items can be found in biotechnology laboratories, clinical laboratories, pharmaceutical research, and molecular biology studies. Most of these items are sterilizable and free of RNase and DNase.