Keep your lunch, drinks, snacks and more cool on the go with the Outset Stainless Steel Ice Pack Set! These stainless steel chillers stay colder longer and are more eco-friendly than the plastic versions. Just place the packs in the freezer for 4 hours and enjoy up to 6 hours of cooling! This is the perfect ice pack set as they are dishwasher safe, food safe, durable, and travel friendly. Everything you need from your ice pack!