● Made of tough polycarbonate; chemically resistant to alcohols and mild organic solvents

● Can be repeatedly frozen and thawed

● 5x5 (25-well), 9x9 (81-well), or 10x10 (100-well) boxes available

● Compatible with 0.5ml, 1.5ml,2.0ml or 5.0ml microtubes and cryogenic vials

● Boxes feature numbered grids for sample identification

● Drain holes and air vents minimize condensation

● Five assorted colors available

● Suitable for storage in mechanical freezers or liquid nitrogen

● Temperature range: stable from -196°C to 121°C