Neoflam 10-Piece CLOC Porcelain Food Storage Set, Assorted Colors Proven airtight locking technology with four hinge lid and silicone gasket help maintain food freshness. Containers are made from high quality porcelain (BPA Free; FDA/California Prop 65 Food Contact Safe) Assorted bright colors make for attractive display while also ideal for baking; serving; and storing Dishwasher; refrigerator; freezer; microwave; and oven safe (up to 572 degrees F/300 degrees C) Measures Square 16oz; Square 23oz; Rectangle 13oz; Rectangle 21oz; and Rectangle 31oz. 1-year limited Warranty