This silicone bottle spout comes with a flip-top dust cover, keeping the spout clean after use and making it ideal for on-the-go hydration needs. Silicone bottle spouts for kids feature a flow-controlled silicone hose spout, helping toddlers drink easily while minimizing coughing incidents during sipping. Made from food-grade silicone and PP plastic, water bottle spout adapter is safe for daily use by children, ensuring peace of mind for caregivers. Water bottle spout adapter boasts a fit (upper diameter 2.8cm, lower 3.5cm), securely attaching to most standard beverage and mineral water bottles. Included cleaning brushes make maintaining silicone bottle spouts for kids simple, ensuring long-term hygiene and usability for repeated use.