Durable thermal support - Coarse dry ice pellets provide energy storage and extended cooling in large capacity coolers for uninterrupted performance during transport or storage. Easy to use - Reusable ice packs freeze within two to four hours and expand slightly as they freeze, making handling straightforward. Leak resistant and durable - The packs use thickened polyethylene material that delivers reliable leak resistance and is easy to clean for long term reuse. Built with high quality construction for stable, seamless performance. Wide range of applications - Reusable cooler ice packs designed to meet cooling needs for fish, pets, food storage, and dairy preservation in a variety of environments. Practical use scenarios - Keeping fish and other perishable items cold during transport or fishing trips to ensure freshness. - Cooling pet medications, treats, or food during travel or outings. - Maintaining safe temperatures for groceries, meals, or dairy products at picnics, tailgates, catering events, or outdoor activities.