Moulded in Polypropylene, these tubes are clear, strong & safe. These autoclavable tubes are provided with printed graduations on the outer surfaces. The built in seal ring in the cap makes these tubes absolutely leak proof. These tubes can withstand forces upto 7500xG & 12000xG for 15ml. tubes respectively. These tubes are available sterilized as well as non-sterilized. The Centrifuge Tubes are available in 15 & 50 ML.