High quality test tubes and centrifuge tubes in various volumes. The microcentrifuge tubes with tight sealing cap are made of polypropylene or polyethylene, produced in natural, or different colors for comfortable identification. The 15ml and 50ml centrifuge tubes are made of polypropylene. Centrifuge tubes are available sterilized or non-sterile, with conical bottom or stand alone. With printed graduations and field frosted for writing, centrifugable up to approx 3000 g.