Stainless Steel Classic Water Cup: The travel mug is made of 18/8 gauge stainless steel with extra paint, rust-proof, durable, easy to use and clean. Vacuum Insulation: The cups are double-layered vacuum insulated to keep your favorite beverages cold or piping hot for hours by the pool, in the office, in the car, anywhere. Simple Color, Versatile Use: Classic and travel glasses can be used as wine glasses, champagne glasses, water glasses or travel glasses for sports lovers, suitable for parties, picnics, road trips, boat trips, beaches, swimming pools, campingand hiking etc. Environmental Leak-Proof Cover: Sealed with a silicone gasket to prevent spills to the greatest extent possible. With a wide mouth drinking hole, straw, and splash guard at the top, you get extra temperature control. Large Capacity and Perfect Size: 500ML/17OZ, suitable for most cup holders. Slim and easy to carry. The perfect gift for yourself, family and friends. Material: 304 stainless steel Capacity: 500ml/17oz Size: 9.2X18.2X6.8cm Color: White Package includes: 1*stainless steel cup 1* Straw