Tube, Microcentrifuge; Screw Cap Style; Labcon; SuperClear®; 2.0 mL; Includes molded graduations and labeling spot; ATP, RNase/DNase and Endotoxin Free (non-pyrogenic); Polypropylene USP Class VI resin; Centrifuging to 20,000 x G; Freezable to -80C; Autoclavable; Capacity: 2.0 mL; 500 tubes per bag/..