SAFE® 96 XT: 2D tubes with external threads in the 96 SBS format. Especially when it comes to sample storage in automated storage systems, for reasons of costs, it is essential that the largest possible quantity of samples can be stored in a smallest possible space. This is where tubes with external threads have the edge over tubes with internal threads due to their lower height. The SAFE® SX 300 in particular – with an effective working volume of 300 µl and its minimal height of 19.1 mm (incl. screw cap) – is a real miracle of compactness. And the XSX 220 is even more compact with a height of only 15.5 mm.