Twist Rectangular Plate 32.5x17.5cm/12.5x7'' (Pack 6) Standard Vitrified Porcelain hotelware is a high quality range of whiteware and restaurant crockery designed for heavy duty use in the catering and restaurant trade. It is backed up by a commercial use warranty and is an assured product of quality. Standard vitrified porcelain hotelware is a high-quality range of whiteware and restaurant crockery designed for heavy duty use in the catering and restaurant trade. it is backed up by a commercial use warranty and is an assured product of quality. all items in the standard Porcelite hotelware range are: Microwave safe. Dishwasher safe. Freezer safe. Oven proof. Craze proof. Chip resistant. Glaze durable. Covered by a 5-year chip warranty ( on selected items where shown).