CoolRacks rapidly equilibrate to any temperature they contact. Index, organize and protect samples in ice, dry ice, liquid nitrogen, water baths, or any other lab temperature source! Simply insert your sample into a CoolRack instead of directly immersing into temperature source. CoolRacks provide temperature consistency and high reproducibility during cooling, (snap) freezing, or thawing procedures, eliminating the critical variable of working temperature variability. The ideal solution for any cryogenic work!