Genaxy pasteur pipettes are excellent for use in all general laboratory applications, including blood banks, hematology, chemistry, and bacteriology. Molded from translucent, low density Polyethylene, which is inert to biological fluids and most acids. These are unbreakable, Non-toxic, all-in-one pipettes which eliminate the hazard of broken glass and exposure to infectious material. It can be sealed and refrigerated. Low-binding surface reduces the loss of cells and valuable proteins.