The original French tumbler in the classic and iconic shape, these tempered glasses are sit comfortably in your hand and are perfect for water, juice or even a glass of wine. They are freezer, microwave and dishwasher safe. The tumblers are thermal shock resistance and 2.5 times stronger than ordinary glass. If they do break, they shatter into blunt pieces rather than shards and so reduce your chances of getting cut by the glass