WATERSY 350/500ml Stainless Steel Thermal Cup Insulated Vacuum Flask Sports Water Bottle for Iced Coffee, Travel, Car & Gym Description ​Capacity: 350ml/500ml ​Material: 304 stainless steel ​Size: 12oz：height 22.2cm,Top diameter 4.5cm, Bottom diameter 6.9cm 17oz: height 18cm,Top diameter 4.5cm, Bottom diameter 6.9cm ​Color: light pink, light blue, black, light purple, dark purple, gradient pink, gradient blue, blue green, green blue, blue pink ​1. Leak-proof: Built-in silicone sealing ring on the lid, 360° leak-proof. 2. ​Various options: 350/500ml capacity, 10 colours to meet different needs. 3. ​Warm and cold insulation: up to 12-24 hours, effectively block the temperature conduction with the outside world, lock the temperature in the cup. 4 ​Multiple scenarios: Office, car, movie theater, library, sports field, gym, school, home. 5. ​The best choice of gift for friends, classmates and family. ​Attention: ​​-Due to manual measurement, there may be an error of 1-3 cm. ​​-Please understand that the color may deviate due to different monitor settings. ​​-If you are satisfied with our product or service, please give us 5 stars feedback, we are very much looking forward to your review!