Stackable within one rack format and also between all rack variants; saves laboratory space when not in use Non-slip silicone feet and a tilt-proof footprint design ensure safe handling Wavelike design: Tube rows are arranged in different heights so that the reaction vessels are easily accessible and clearly identifiable Made of polypropylene (PP) for high chemical and physical resistance Optimized space-saving dimensions due to perfect tube position-to-footprint arrangement without compromising the tube handling High flexibility: holds tubes of different sizes Numbered tube positions support fast and easy orientation and error-free handling