Description. 1. Safety lock. One key to open the lid, more convenient to drink, to prevent accidental contact and leakage of water 2. Precise scale line. Drinking water target reminder, help daily drinking water 3. Silicone nozzle. Food-grade silicone nozzle, soft silicone, gum protection 4. Inverted without water leakage. Cup lid inner sealing silicone ring + anti-misopening latch, double leak-proof, 360 degrees inverted without leakage, airtight 5. Cup rope design. Carry buckle + carry rope design, convenient for daily travel to carry 6. Anti-drop and wear-resistant. Thickened cup body, high strength and fall resistance Specifications. Capacity: 1.6L,2.5L Type: straw gradient mug Note: Due to the good sealing of the straw cup, it is recommended to fill the cup with warm water below 50 degrees to prevent the rise of air pressure, resulting in water splashes when opening the lid scalding straw. Package includes: 1 * water bottle