The Microwave Safe Bowls Have A Steel Interior And Plastic Coated Exterior And Can Be Used For Re-Heating Food Or Simply Serving And Storing Your Snacks - Cereals.All Sizes Nest For Compact Storage And All Are Dishwasher Safe.Looking To Add Some Fun To Your Kitchen. Look No Further Than Our Pog. This Home & Kitchen Item Is Sure To Bring A Smile To Your Face Every Time You Use It. Easy To Use And Clean, This Pog Is A Must-Have For Any Home Cook.