Non-dripping patented design, completely leak-proof. Silicone straws are soft and elastic, which can protect a baby's tender first teeth. The straw is equipped with multiple flow valves inside and is sensitive to pressure. It will release liquid according to the baby's sucking: when the suction force is strong, the release flow is large. When the suction is weak, the release flow is small. When not in use, it will not release the flow rate, ensuring no leakage. All products have passed the safety compliance standards stipulated by the government and are made of non-toxic, safe and durable materials. 【 Rotating Top Cover 】 : Simple and easy to use, ensuring the straw is clean and hygienic. When the baby wants to drink water, just open the lid and they can easily suck it up. It is especially suitable for carrying when going out or on short trips.