Great White Stacking Mug 12oz 34cl: An exclusive range of quality vitrified porcelain at the most competitive prices. Manufacturered to BS4034 standards. Lifetime Edge Chip warranty. Dishwasher safe. Thermal shock resistant. Microwave, oven and freezer safe.: Great White By Lockhart: : White - Vitrified Porcelain - 9.6:cm - 8.2:cm - 34:cl - 12:oz - Dishwasher Safe - Oven Safe - Freezer Safe - Thermal Shock Resistant - Vitrified Porcelain