Members Mark 8 pc Set Crafted of exceptionally strong Tritan, this drinkware set offers the classic look of glass yet it won't crack, shatter, or break. The tumblers are 100% food safe and guaranteed to withstand the test of time. Perfect everyday drinking cup; great for patio, picnic, and other outdoor use. This set features a modern textured design with multiple color options to choose from. What is included: Each set includes eight 14.6 fl. oz. tumblers. The vibrant colors make this a stylish and fun accent to any table setting. What is Tritan: Tritan is an impact-resistant plastic — products can be used without fear of shattering. Tritan has exceptional dishwasher durability — encouraging proper sanitation for greater plastic container safety. Tritan is much lighter than glass — making it easier to handle without the fear of breaking. Tritan has no estrogenic or androgenic activity — it is not manufactured with bisphenol A (BPA) or other bisphenol compounds, such as bisphenol S (BPS).