Using externally threaded storage tubes eliminates the possibility of the sample coming into contact with the screw thread, minimizing chance of cross-contamination while improving sample integrity. These sample tubes can also hold a higher (net) volume of material while occupying the same amount of storage space, maximizing storage volume. The 0.75ml tubes are provided with a triple start thread which gives an excellent closure to ensure long-term sample preservation and storage. Due to thick tube walls, the tube has a sturdy design and excellent properties for ultra-low temperature storage. The code surface features a raised edge, which protects the 2D code against accidental scratches, ensuring absolute traceability. Micronic 0.75ml non-coded tubes offer a cost-effective solution without compromising sample quality and safety.