Kuber Industries small microwave safe inner steel Containers shall help you in keeping your food hot and safe. Containing 6 x 17 Cms Bowls each having a capacity of approx. 600ml with Airtight Spillproof Lids . The Containers have a Steel Interior and Transparent Plastic Coated Exterior and can be used easily for easily re-heating food at Office / Home in the Microwave WITHOUT lid. The Hard Plastic gets heated first which in turn heats up the Stainless Steel in which your food is absolutely safe and free of any toxins. So Go Ahead and Buy Yourself a Set!! Care Instructions - Hand Wash Recommended with Mild Detergent and Soft Brush. Do Not use wire mesh pads to clean which might scratch the surface. Use in the Microwave only for Re-Heating Without Lid.