Made of high-quality medical-grade polypropylene, these tubes are designed to withstand high centrifugal forces and are fully autoclavable for maximum sterility. Each tube is compatible with either a leak-proof screw or plug cap for secure and reliable sealing. With capacities ranging from 5ml to 50ml, these tubes are perfect for a wide range of laboratory applications, including DNA/RNA isolation, protein purification, and cell culture. The tubes are certified RNase-, DNase-, and pyrogen-free, ensuring contamination-free sample processing.