50Pack 50ml Centrifuge Tubes with Screw Cap, Self-Standing Plastic Conical Test Tube, with Graduated Marks and Writing Area, Non-Pyrogenic, DN/RNase Free for Lab for Lab

High-Quality Materials: 50Pack 50ml centrifuge tubes are made of high-purity polypropylene, smooth and flat, free of residual solution. They are ethylene oxide sterilized, pyrogen-free, DNase-free, and RNase-free, and contain no human DNA. Easy to Mark: Each centrifuge tube is equipped with a white marking area for easy identification during daily use or experimental analysis. The scale and writing area are resistant to chloroform corrosion. Leak-Proof: The secure threaded polypropylene cap creates an airtight seal, preventing leaks during centrifugation. Easy to Read: The 50 ml centrifuge tube has a scale printed on the side of the tube. The scale is precise and easy to read, making it convenient for measuring in scientific applications. Wide Applications: Laboratory microcentrifuge tubes can be used for a variety of sample preparation, storage, and separations. They are also suitable for storing solids, powders, seeds, pills, granules, and other materials to prevent moisture and dripping.