Excellant&eacute; Nautilus Collection 12-Ounce Soup Bowl, Two Tone Shell 12-Ounce soup bowl - two tone shell color Made out of 100-Percent non-toxic melamine material Elegantly designed Nautilus pattern of plates come in a ridged pattern for realism and style It is dishwasher safe and National Sanitation Foundation (NSF) approved Not recommend for microwave or oven use, but able to withstand up to 212 degrees fahrenheit