Feature:316 stainless steel material: made of 316 food grade stainless steel, strong acid and alkali resistance, strong chloride corrosion ability. The surface of the bottle is made of wear-resistant materials to extend the service life of the thermos.24-hour heat preservation: keep 12℃ cold and 44℃ for 24 hours. You can enjoy ice water in the hot summer sun, or drink hot coffee all day in the cold winter.Easy to carry and leak-proof: The food-grade PP inner stopper ensures that the bottle mouth is completely sealed and does not sprinkle water.Portable anti-static nylon rope, reinforced design, easy to carry, convenient for outdoor travel.Large capacity: The Thermos kettle has a capacity of 500/800/1000ml, which can meet the needs of a family and is ideal for picnics, hiking or camping trips.Specification:Material: 316 stainless steel (inner tank), 304 stainless steel (surface)Size/Capacity:500ml-69*246mm;800ml-84*265mm;1000ml-84*300mmColor: black, white, blue, stainless steelnotes:Due to the different display and lighting effects, the actual color of the product may be slightly different from the color shown in the picture;Due to manual measurement, please allow a measurement deviation of 5-10mm.The package meets:1 x thermos bottle