Robin II Polystyrene Insulated Shipping Coolers are made with high-density Expanded Polystyrene (EPS) to help maintain cold or frozen temperatures during transit. These coolers are designed for shipping temperature-sensitive items such as frozen or refrigerated food, beverages, medical supplies, and hand-crafted products. They are lightweight, durable, and easy to handle, suitable for mailing or courier delivery. Each cooler can be cleaned and reused multiple times, offering a practical and sustainable option for temperature-controlled shipping.