Centrifuge Tube made of PP. Green screw cap made of PE 1 ml graduations (starts at 2 ml) to 15 ml 17 mm diameter, height 120 mm Large white writing area Certified free from RNase, DNase, Pyrogen and DNA Sterilile A Centrifugation up to 20.000G Autoclavable at 121 °C Resists freezing down to -80°C Hydrophobic, biologically inert surface Short screw thread - optimized for single-hand use Inner packing with 50 tubes