CryoKING® PC Cryogenic Boxes-Assorted (3.75in. 81-Well), Case of 20

● Can be repeatedly frozen and thawed

● 9x9 (81-well) boxes

● 1.5ml or 2.0ml 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

● Temperature range: stable from -90°C to 121°C