Disposable pipettes are molded in one piece from low density polyethylene. Our pipettes, both the Standard and Graduated (1/2 ml markings, 1/2, 1, 1-1/2, 2, 2-1/2, 3ml) styles are 6" in overall length. A single squeeze draws up to 3.2ml with a total capacity of approximately 7ml. Many other styles are available, just ask.