These thin-walled 0.2ml and 0.5 ml PCR- tubes are our quality concept for reproducible PCR- results. High transparency and new designed lips are unique product features that ensure comfortable handling, tight sealing and easy opening of the tunes. A special hinge allows lid to go into a defied position of 90° c . they can be used in most thermal cyclers with heated lids. All our PCR-tubes can be autoclaved (121° C , 15 ml.) certified to be free of any detectable human DNS , DNase , RNase and PCR- inhibitors