These containers are perfect for lunches or leftovers! They are leak proof and airtight, so they can hold everything from soup to salad. Made of high quality, 18-10 food grade 316 stainless steel, they won’t leach chemicals into your food like plastic does. The lid has a non-removable silicone seal that has been factory-installed without adhesive. The stainless steel latches are easily opened by children and adults. Care: The base of the container is dishwasher-safe, oven-safe, and fire-safe (hello campers!). The lid should be washed by hand in warm soapy water, and is not oven-safe. Container volumes: Condiment container: 1.5 oz 8 cm container: 0.6 cups 12 cm container: 3 cups 16 cm container: 6.6 cups or 1.5 L Packaging; This product comes 100% package free. This product is made by Onyx Containers in British Columbia, Canada and manufactured in Korea.