These tubes are made of optically clear PS and feature distinct molded graduations.

• Colorless and transparent are perfect for biological reaction experiments
• RNase-, DNase-, and Endotoxin-Free
• Leak-proof
• Not autoclavable
• Sterile tubes are sterilized by irradiation
• During the freezing process, it is better to use plastic rack
• During high-speed centrifugation, it is better to use suitable rotor adapters

The flat surface of the polypropylene cap provides an at-a-glance identification area.