Freezing Campingaz Freez Pack M30 Camingaz Freez Pack M30 freezing refill will help cool drinks and snacks. Can be used in touristic refrigerators cooling bags and backpacks. Filled with non-toxic liquid so without worries you can use in contact with food. Technical Specifications:  dimensions: 25 .5x20x3 cmweight: 1200 waterproof reusable easy to keep cleanfilled liquid which is a mix of water, dye, carboxymethylcellulose,  actricide. damage packaging completely harmless for health. Specification capacity refrigerator in relative to amount refills:-capacity refrigerator <10 l – 1 pieces pieces inset M5 M10-capacity refrigerator 10-14 l    2 pieces insert;in M10-capacity refrigerator 14-19 l    each 1 pieces insertóin M10 M20-capacity refrigerator 19-26 l    2 pieces insertó w M20