1. 9x9 (81-well) or 10x10 (100-well) boxes available, Compatible with 2.0ml cryo tubes.
2. Made of polycarbonate(PC), Can be repeatedly frozen and thawed.
3. Working temperature from -196℃ to 121℃, Suitable for liquid nitrogen freezing.
4. Boxes feature numbered grids,and different colors for sample identification.
5. RNase & DNase free, Non-pyrogenic.