Freezing Campingaz Freez Pack M20 Camingaz Freez Pack Freezing Insert M20 for tourist coolers, bags and backpackóin cooling. It will help w chilled drinks and snacks. Filled with non-toxic liquid. Specs :  - dimensions: 20x17x3 cm- weight: 760 g- waterproof - reusable - easy to keep clean filled with a liquid which is a mixture of water, dye, carboxymethylcellulose,  acticide. Therefore in in case damage packaging completely harmless for health. Specification of capacity refrigerator in relative to amount refills:-capacity refrigerator <10 l – 1 piece refilló w M5 M10-capacity refrigerator 10-14 l –  2 pieces insertów M10-capacity refrigerator 14-19 l –  each 1 pieces coreów M10 M20-capacity refrigerator 19-26 l    2 pieces coreów M20