Fahrenheit Temperature Display - Our insulin cooler travel case features a Fahrenheit temperature display, allowing you to clearly monitor the real-time internal temperature. Insulated Cooler Bag for Travel - This portable cooler bag for diabetes supplies is made with EVA outer material and insulated with aviation-grade pearl cotton and aluminum foil lining. It offers reliable waterproof performance and effective thermal retention. Long-Lasting Cooling Performance - No electricity required. Includes two large ice packs (TSA approved). After freezing for 5–8 hours, the ice packs maintain an internal temperature of 35.6°F to 46.4°F for 5–8 hours when the external temperature is below 86°F. The travel medicine cooler keeps insulin at a safe temperature below 74°F for over 24 hours. Spacious Medicine Storage - Designed with optimized storage space, this diabetes supply bag accommodates 3–6 insulin pens, syringes, alcohol pads, cotton balls, and other essential items for blood sugar management. Usage Instructions - 1. Freeze the ice pack for 5–8 hours until fully solidified. 2. Place the medication and frozen ice pack inside the bag to begin cooling. Note: The ice pack is reusable and can last 3–5 years. Store in the freezer when not in use for future applications.