Falcon® 14 mL Test TubesFalcon 14 mL Test Tube Constructed of optically clear polystyrene for easy viewing of sample. Corning Falcon Round Bottom Polystyrene Tubes are widely used and referenced in laboratory protocols. Used as Oocyte Collection Tubes. Features: Designed for economical, one time use Clear polystyrene, with deep, friction fit caps of lower density polyethylene Caps allow sealing or partial closure to permit gas transfer Lot Number Lookup To look up a lot