Portable cooling for your injectables is now possible with the MediCOOLER. Many medicines should be properly stored at temperatures between 36F - 46F (2C - 8C). Keeping these temperatures constant can be difficult when traveling. With the MediCooler, you can keep bottled medicine and syringe pens safely cool in a compact, lightweight mini refrigeration unit. Powered by household current or a 12V DC auto socket adapter (included), you can safely travel with your medicine and keep it within recommended temperature ranges. Constructed of heavy-duty high density plastic, the MediCooler can hold up to 9 bottles of insulin or 3 prefilled insulin pens or a combination of both. Portable: 8 x 5 x 4 Lightweight: 2lbs 4.4oz