These unbreakable all-in-one LDPE disposable transfer pipettes eliminate the hazard of broken glass. Put an end to matching rubber bulbs with glass pipettes. The natural plastic pipettes are molded from see-through low density polyethylene plastic, these pipettes can be sealed and refrigerated. The disposable transfer pipettes work well whenever there is a need for quick, safe transfer of fluids. Temperature resistant down to -196 deg C. Please Note: These items are non-sterile.