Tube, MicrocentrifugeScrew Cap Style; Labcon; SuperClear®2.0 mLIncludes molded graduations and labeling spotATP, RNase/DNase and Endotoxin Free (non-pyrogenic)Polypropylene USP Class VI resinCentrifuging to 20,000 x GFreezable to -80C AutoclavableCapacity: 2.0 mL500 tubes per bag/10 bags per caseMad..