Axygen thin-wall clear PCR strip tubes are specifically designed for PCR. A thin and consistent wall thickness reduces the insulating effect of the tube during thermal cycling. Axygen PCR tubes are manufactured to the highest quality so your results are more accurate. Axygen tubes are made from highly polished moulds and are free of lubricant, dye, and heavy metals or fillers. The difference is clearly amazing. Compatible with all major PCR machines. Certified RNase, DNase and pyrogen safe.