Conical Sterile Polypropylene Centifuge Tubes are premium,high-quality conical tubes that are ervironmentally friendlyallow for increased traceabilitywith the largest writing area on the market.Centifuge tubes are made from high-puity resins and molded using our state-of-the art processes.Centifuge tubes is asafer alternative to glass without sacrificing accuracy.Centrifuge tubes feature are black-printed graduations and a largewhite marking spotSterile,DNase/RNase-free,NonpyrogenicFeatures:Snap lock Microtubes have frosted cap surfaces forlabeling,frosted panels on the side for writingWithstand up to 14,000xg RCFSnap lock cap assures efficient sealThin membrane in capcenter allows easy access tosample by syringe needleDNase/RNase-free,Nonpyrogenic