The product does not contain a sealing ring, so avoid placing it in a shaking place Specifications: Material: food grade 304 stainless steel + plastic Colour: Black Caliber: 23cm Height: 35cm Capacity: 8L Weight: about 3kg Features: 1. Made of food-grade 304 stainless steel, which effectively locks the temperature and is durable. 2. Foldable tripod, open to increase height, flexible and convenient. 3.Double insulation / cold preservation, warm in winter, cold in summer. Packing including： 1* 8L stainless steel insulation barrel .