In addition to the well-established advantages of the SAFE® XT technology, which offers the lowest possible risk of contamination, the most efficient use of space and a patented two-phase compression seal, each tube is perfectly suited for the specific requirements of modern biobanking. XXLX 2000 – traditionally used as a tissue vial due to the low height and large diameter, but can also be used for fluids. XXLX 4000 / XXLX 6000 – suitable for storing larger tissue samples and larger volumes with a reduced height & as reformatting storage tubes for frozen Legacy Samples (Cryo Tubes, EppiTM, SarstedtTM Micro Tube, Nunc® CryoTubes®, WHEATON® CryoEliteTM, and much more). XXLX 8000 – for high volume storage requirements. LVL Technologies products are intended for sale/shipment within North America, South America, and the Carribean only. All other International customers should contact their local LVL Technologies distributor to place orders for LVL Technologies products.