... color - packing: polybag,color box,CDU,etc cold blue ice freezer packs- CE,EN71 certificates- color- PMS color- packing: ... toxic,Non-Caustic. Usage:Put the blue ice pack into ice making compartment of refrigerator to be refrigerated ... transportation of poultry,aquaculture product.Precaution:The blue ice pack can only be used for external medication ... evenly and can be reused. blue ice freezer packs