Kesell 50ml Polypropylene Screw Top Self Standing Base Centrifuge Tube with Graduated Marks and Writing Area, Pack of 10

50ml conical flat bottom centrifuge tube made of high transparency PP material . Screw cap with tight sealing, external graduations with white marking area,flat bottom that allows the tube to stand on its own. The set includes 10pcs centrifuge tubes. They're simple to fill and the lids fit tight, no leaks Smooth products, good transparency, accurate measurement scale, the lid elastic appropriate to high-speed centrifugal. These conical centrifuge tubes are widely used in biology and chemistry laboratories.