Enhanced cooling technology Provides a continuous cold energy release to extend cooling duration and deliver reliable performance in temperatures, ensuring ice blocks keep contents cold in any cooler. Convenient to carry Compact and lightweight design ideal for outdoor cooling; easy to carry and travelfriendly for adventures and trips. Convenient to operate Simple water and freeze method supports quick preparation; blocks are freezer compatible and ready to use after freezing. Longterm use Leakproof design and wearresistant material maintain consistent freezing efficiency and resist deformation over extended use. Use scenarios Camping trips and outdoor picnics: keeps beverages and perishable items cold for the day in rugged coolers. Road trips and travel: compact size fits smaller coolers and enhances portability during journeys. Fishing trips or extended outdoor events: provides steady cooling for foods and beverages over long hours without frequent replacements.