The Schott Zwiesel Forte collection is crafted from ultra-durable Tritan crystal and styled with a graceful tapered bowl perfect for highlighting your wine's palette. Stemless wine glasses. Forte Universal Tumbler 18.6 oz, Set of 6. Many people also use these for an elevated water or juice glass. Exceptional quality. Perfect wedding gift, engagement gift, bridal party present, new house, new home, housewarming. Break resistant crystal. Dishwasher safe. Lead-free crystal. New in box. New with tags. Unopened, In original packaging. Brand new. NWT. NIB. Posh Ambassador. Smoke free and pet free.