Optimized cold retention With an efficient cooling formula, these ice blocks continuously release cold energy to extend cooling time, even in hot conditions. They help maintain a low temperature longer, improving overall cooling efficiency. Portable and easy to carry Space-saving and compact, these ice blocks are lightweight and designed for outdoor use. They provide reliable cooling outdoors, wherever you are. Easy to use Designed for quick setup and a user-friendly experience, these ice blocks are ready to use after freezing and are suitable for freezing. They are simple to handle and reuse. Durable and leak-proof Built with wear-resistant and leak-proof properties, these ice blocks deliver dependable cooling performance. They resist deformation and ensure durable functionality over time. Use scenarios Camping and outdoor picnics: keep drinks and perishable snacks cold in a cooler for hours. Beach days, boating, and outdoor events: extend cooling for beverages and food in outdoor settings. Road trips and travel: maintain cold storage for long drives or outdoor excursions.