Centrifuge tubes with the conical bottom are available in two sizes i.e 15 ml. & 50 ml. Moulded in Polypropylene, these tubes are clear, strong & safe. These autoclavable tubes are provided with printed graduations on the outer surface. The built-in seal ring in the cap makes these tubes absolutely leak proof. These tubes can withstand forces up to 7500xG & 12000xG for 15 ml. & 50 ml. tubes respectively.