Description; General description; Polycarbonate container, blue high-density polyethylene closure, white high-density polyethylene vial holder, and foam insert. Provides the critical, repeatable, 1°C/min cooling rate required for successful cryopreservation of cells. Easy to use in any mechanical freezer. Container is imprinted with graphic instructions. Requires only isopropyl alcohol. Rigid vial holder keeps vials from contacting alcohol, preventing contamination by wicking. Vial holder floats to allow thawing in a water bath. Numbers molded for identification. All components withstand repeated freeze/thaw cycles. Stackable.; Application; Freezing container, Nalgene™ Mr. Frosty may be used for freezing plant cells, protoplasts , PBMC (peripheral blood mononuclear cell) .; Compatibility; Holds 18 x 1.2 and 2.0 mL cryovials; Legal Information; Nafion is a trademark of The Chemours Company FC, LLC; Nalgene is a registered trademark of Thermo Fisher Scientific or its subsidiaries