SAFE MATERIAL: Thermal mugs are made of high-quality 304 stainless steel, robust and durable, non-oxidizing, corrosion-resistant, odorless, and safe for drinking. The insulated bottle with a practical twist cap does not contain a breakable glass insert, making it ideal for outdoor use. KEEP HEAT AND COLD: The stainless steel drinking bottle ensures that your drink stays cool and refreshing for up to 12 hours or hot and warm for up to 12 hours. Perfect for hot or cold weather. Excellent insulation ensures the bottle will not sweat or become hot to the touch, regardless of the liquid temperature. LEAK-PROOF AND NON-SLIP: Double lid closures and silicone rubber seals provide leak-proof performance, even if the bottle is tipped over or shaken. Can be safely placed in a backpack. The bottom features a non-slip silicone base to prevent slipping on surfaces. THERMOS CUP WITH 3 LID SET: The 500 ml thermos flask is suitable for storing various beverages such as water, tea, coffee, and milk. It includes a practical lid design that doubles as a cup. The sports bottle with carrying handle is convenient for daily use and easy portability. ENVIRONMENTALLY FRIENDLY AND GIFT: This BPA-free thermos flask is reusable and recyclable. A sustainable alternative to disposable plastic bottles, helping reduce environmental waste. Ideal for home, office, sports, camping, or travel. Features a sleek design, making it a great gift for adults and children. Specification: Capacity: 500 ml Material: 304 stainless steel Safe material: High-quality 304 stainless steel, robust, durable, rust-free and odorless. Suitable for safe drinking, both at home and outdoors. Keeps heat and cold: Keeps drinks hot or cold for up to 12 hours. Ideal for summer or winter use. Leak-proof & non-slip: Double lid and silicone seal prevent leaks. Non-slip base ensures stability in a bag or on a desk. Practical 3-lid set: 500 ml thermo mug with multiple lids, including a cup lid and drinking lid. Suitable for office, travel, or sports. Environmentally friendly & BPA-free: Reusable and BPA-free. Helps reduce plastic waste and protect the environment a thoughtful gift for any occasion.