About the pavina outdoor double wall tumblerdesigned especially for outdoor use, the pavina outdoor double wall tumbler set is a stylish addition to your barbeque and picnic equipment. Crystal clear to the eye and lightweight to the touch, they offer the beauty and clarity of glass, without its fragility. These innovative double wall tumblers are made from an extremely durable, bpa-free material, making them virtually strong drinking glasses. So theyre perfect for poolside drinks, barbecues with your family and friends, and picnics in the park. And you wont need to worry about your children getting hurt if they drop them. Despite being virtually impossible to break, they look smashing! their double-wall design has a floating effect on your favorite beverage, giving them a chic appearance, and the material wont cloud or discolor, no matter how often you use them. Main features benefitsset of double wall tumblers, perfect for outdoor use.innovative double-wall construction made as a single piece to prevent leakage.keeps hot drinks hot and cold drinks cold for longer.made from an extremely durable material that wont crack, shatter, break, and maintains its clarity through regular use.bpa-free material thats safe for all the family, including kids.dishwasher safe.available in a choice of sizes.use carewash in warm, soapy water before first use and dry thoroughly. For all subsequent uses, wash and dry by hand or pop in the dishwasher.