This square book shaped water bottle is perfect for outdoor activities, the flat design makes the whole water bottle look more cute and beautiful, you can easily print your own logo, it is a good choice for libraries, bookstores, outdoor activities, all kinds of festivals, by the way the cups are not suitable for boiling water.Using a creative and personalized cup with your own logo in any event is a great way to make your brand known to more people and get more and more attention! Measuring 13.5 oz, this custom a5 transparent notebook water bottle-700ml. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization available: Print your logo or customize packaging and color schemes. Product Highlights: BPA-free, leak-proof, travel-friendly.