Use these disposable Pastettes instead of a Pasteur pipette for liquid transfers. Ideal for general use applications such as blood work, transferring supernatant, adding reagents/chemicals and extracting samples for analysis. Designed to replace glass Pasteur pipettes, Pastette (transfer pipette)s are unbreakable, do not require a separate bulb and, as they are manufactured from soft Low Density Polyethylene (LDPE).