Function : 1. Different layers: The insulin cooler housing adopts multi-layer structure, so you can store various medications with good capacity for convenient use. 2. Cooling time: Keep the temperature of the cooler bag between 2 and 24 degrees Celsius, about 12 hours in summer and 24 hours in spring and fall. 3. Zipper closure: The insulin carrying case adopts a zipper design, easy to open and close, provide better protection for internal medicine. 4. Scope of application: The insulin cooler bag is suitable for insulin pens and other diabetes materials, which is lightweight and easy to carry for travel use. 5. Excellent EVA: insulin pen case made of high quality EVA material, with excellent workmanship, strong and durable, which can be used for a long time. Specification : Item Type: Insulin Cooler Housing Product material: EVA Scope of application: Suitable for insulin pen and other diabetes products. Package List : 1 x insulin cooler housing (no ice pack)