20oz Double insulated stemless spill proof tumblers,stainless steel tumbler cup with lids and straws for coffee and drinks! Material?Water tumbler is made of quality 18/304 stainless steel with an extra spray painting?non-toxic no smell, protect your health. Vacuum insulation?18/8 stainless steel double wall vacuum insulation technology, can maintain the temperature of hot coffee for 3hours and cold drinks for 5hours. Wide application?Six colors of products for selection, suitable for a variety of occasions: home, outing, tourism, etc.Suitable for water, milk, wine?juice, smoothie, champagne and other drinks. Specifications: Material: 304 stainless steel Height: 21.4 cm/ 8.3 inch (including lids) Bottom base diameter: 6.7 cm/ 2.6 inch Cup mouth diameter: 7.4 cm / 2.9 inch Color: as the picture shown Package: box Package includes: 16x Stainless wine tumblers 16x Steel straws 16x Splash proof lids 8x Straw brush Warm tips: We recommend hand washing. Certain dishwashers and detergents can leave spots on the exterior.