La Rochere's Coastal tumbler is inspired by dazzling streaks of sunlight reflecting off the sparkling surface of the ocean. This 10 oz tumbler adds coastal elegance to formal and casual entertaining. Steeped in tradition, La Rochere is the oldest glass manufacturer in France. Their pieces are fired at high temperatures producing an exceptional quality glass that is crystal clear, durable, and dishwasher safe. La Rochere pieces are renowned for using a traditional molding process which creates their iconic seam.