Hotsmart keep-hot bowl WATERLESS bone china (not plastic) keep-hot bowl by HotSmart, keeps soup hot (Heater integrated) Preheat ONE MINUTE in the microwave OR Heat up the soup in the bowl NO need to fill it with hot water! (The bowl has a microwave absorbing heater integrated, patented) Safe handling with the bare hands, Ideal companion to a HotSmart Plate and HotSmart mug (also available at Amazon.com) Bone china. You don't want your mom or dad to eat on plastic baby dishes do you? Food stays hot longer on HotSmart bowls (no contest). Feeding aid for the sick and the elderly (people who eat slowly), Alzheimer's, Parkinson's etc.