6pcs Ice Containers Lightweight Freezer Blocks For Outdoor Family Description: [Design]: This compact refrigerator is designed to enhance the cooling effect of appliances such as air conditioners, refrigerators, and refrigerators. It has a rubber stopper and an aluminum cap for sealing leaks. The material meets health standards, offering high cooling capacity and slow release. [ Versatile Application]: Ice blocks Ideal for various applications such as food cooling, breast milk preservation, ice crystal air conditioning, nursing cooling, cold transportation and cold storage during power outage. [Ice Crystals]: Ice crystals provide a longer cooling effect compared to regular ice water. They can be used multiple times to ensure efficient cooling. [Easy to Use]: Simply prepare the right amount of blue ice containers and place them in the freezer without adding water. After freezing for 4 to 8 hours (depending on the freezer temperature), remove the blue ice containers and put them in the water tank of the appliance until it covers the blue ice container. [Material]: Ice cubes made of PETG material measuring 4cmx16cm each box package contains six pieces of small blue ice boxes. Specification: Material: PETG Size Chart: 4 cm x 16 cm / 1,57 inch x 6,30 inch The package includes: Boxes