Effortless Access: Our One-Click Operating System simplifies bottle opening, perfect for little hands. The patented dust-proof lid ensures clean and healthy daily hydration. Premium Stainless Steel: Crafted from premium food-grade 18/10 316 stainless steel with a double-wall design, this high-quality vacuum-insulated bottle acts as a thermos, keeping beverages cold for 24 hours and warm for 12 hours. The mirror-polished interior not only prevents drink residue but also simplifies cleaning, all while offering antibacterial benefits, making it especially suitable for kids. Leak-Proof & Secure: Fjbottle's Triple Thread Technology guarantees a spill-proof seal. The non-slip lid design enhances grip, reducing the chance of accidental drops. Safety First: All components are BPA-free, ensuring your child's well-being with every sip. An additional silicone base sleeve ensures it won't slide on the tabletop and can double as a small drinking cup.