Tube, Conical centrifuge; Labcon; SuperClear; 15mL; Sterile; Indivdually wrapped tear open packages, With attached flat screw caps; Caps include integral molded elastomeric seal; Patented anti-smear writing surface; 3 color printed graduations and reverse reading scale; ATP, RNase/DNase and Endotoxin Free (non-pyrogenic); Validated Sterilization (ISO 11137) for use in Research and Medical labs; Polypropylene USP Class VI resin; Centrifuging to 17,000 x G; Freezable -80C; Autoclavable; Capacity: 15mL; Teal color caps; 1 tube per bag/100 bags per case, caps; 17mm W. 118mm H; Made in USA