This little ice pack is the very first stainless steel ice pack ever! made from 18/8 food grade stainless steel, it is 100% non toxic! The pack is filled with only distilled water making it safe to go right into your container, next to your food.
It freezes solid in about 2 hours, and will keep your lunch cool for 4-6 hours, depending on your containers and your lunch bag. However, the uses don't just stop at lunch. It is also perfect for sore backs, headaches, bruises, and bumps.