Enhanced Cooling Technology: The ice blocks use an enhanced cooling formula that provides continuous cold energy release, extends cooling duration, and performs reliably in temperatures for consistent ice block performance in any cooler. Handy to Carry: Compact and lightweight design saves space and is easy to transport, making them ideal for outdoor cooling, camping, and day trips. Convenient to Operate: Simple water fill and freeze method allows quick preparation; freezer compatible and ready for use after freezing. Assured Durability: Wear resistant and leak proof construction resists deformation and delivers lasting cooling performance. Use scenarios: Camping trips: keep perishable food and drinks cold in a portable cooler without bulky ice. Beach or picnic days: maintain refreshing beverages and snacks cool under sun with longlasting cold blocks. Road trips or fishing trips: preserve groceries and bait with reliable cooling in vehicle or remote coolers.