Royal Genware Square dish (4 pieces fit 353028): Conforms To BS4034 For Vitrified Hotelware Quality Standard For Durability In Use. Made from Specially Selected Clays For Brighter White Good Presentation That's Practical Compared To Other Porcelain Alternatives. Durable Glaze Prolongs The Life Of The Product and Improves Stain Resistance: RG Tableware By Genware: : White - Porcelain - Square - Conforms To BS4034 For Vitrified Hotelware Quality Standard For Durability In Use - Made from Specially Selected Clays For Brighter White To Give Great Presentation That's Practical Compared To Other Porcelain Alternatives - Durable Glaze Prolongs The Life Of The Product and Improves Stain Resistance - Rolled Edge Ensures Durability And Functional For Added Chip Resistance Suitable For Hotel: Restaurant And Foodservice Applications - Microwave and Dishwasher Safe - Perfect for Time Efficient Heating and Cleaning Requirements - Oven and Freezer Safe - For Protection against Damager caused by Thermo Shock and Temperature Fluctuation