Safety and materials - BPA-free durable plastic water bottle made from environmentally friendly materials. Non-toxic, odor-free, and resistant to high temperatures. Can hold hot or cold water from -10 to 100 C without distortion, and is drop-resistant. For burns prevention, hot water should not exceed 60 C. Leakproof design - Sealed by a leak-proof ring that stays tight and won’t leak even when inverted 360 degrees. Cap features a one-button opening with pull-up lock and transparent visibility. Striped non-slip design on both sides of the cap makes it easy to grip and operate with one hand. Large mouth opening allows easy cleaning. Convenience to carry - 400 ml (14 oz) capacity with a compact bottle body. Size listed as 158 cm (5.9 3.15 inches). Fits easily into backpacks, handbags, luggage, and school bags. A lifting ring on the cap can move up and down for hanging on a desk, waist, or bicycle. Suitable for water, juice, milk, cola, and more. Fashion and popularity - Color options: blue, grey, green, pink. Transparent round body with a cute, compact shape. Popular design among active people and teenagers; suitable for boys, girls, and students going to school. Suitable as a learning-to-drink cup for kids. Nozzle of the straw resists clogging for easier use. Use scenarios - At school or work: grab-and-go hydration with a reliable leakproof cap and easy one-handed use. - Outdoor and travel: lightweight, portable, and easy to hang on bags or bicycles during activities. - For kids and learning: stable design and easy-clean mouth make it practical for young users and learning to drink.