Polycarbonate container with HDPE closure and vial holder. Foam insert provides the critical, repeatable -1°C per minute cooling rate required for successful cell cryopreservation and recovery. Requires only 100% isopropyl alcohol and mechanical freezer. Labeled with graphic, step-by-step instructions. Holds up to (18) 1.0-2.0 ml vials. Holder prevents vials from contacting alcohol. Containers with alcohol can be stored at room temperature, saving freezer space. Dimensions: 4.6 x 3.4 in. (117 x 86 mm) [Dia. x H].