Material: Stainless steelSize: 88*115mmColor: White, Green, PurpleCharging method: Battery1. Outstanding thermal insulation effect: Made of stainless steel material, it can effectively keep the water temperature, allowing you to enjoy hot or cold water anytime, anywhere.2. Healthy and environmentally friendly: Made of stainless steel material, you can use it with confidence while reducing the environmental pollution caused by disposable plastic bottles.3. Exquisite appearance: Simple and stylish design, exquisite appearance, suitable for carrying in various occasions, showing your taste.4. Large capacity: Large capacity design can meet daily drinking water needs without the need to frequently add water, convenient and practical.5. Leak-proof and non-slip: With a sealed design, it is not easy to leak, comfortable and non-slip to hold, safe and reliable.Package includes: 1* thermos cup