[ Functional Water Bottles ] 1. Hidden drinking nozzle gland for clean and hygienic drinking experience, isolated from external pollution. 2. Large-opening circular design for quick and easy replenishment of moisture, takes only 8 seconds to pour all the water out. There's easy to open and easy to drink. 3. One-piece hook design for easy hanging on backpacks. It can be operated with one hand. [ Safety & BPA FREE ] 1. Made of TRITAN, a BPA-free material for safe drinking. 2. Cup mouth made of food-grade silicone. 3. Cup cover wrapped with silicone material, with a rubber seal autospout for 100% leakproof experience. [ Easy to Clean & Easy to Use ] 1. Simple design with no complicated internal structure or built-in straws. 2. 7 cm wide diameter for easy to clean with a brush. [ Utility Scenarios ] 1. Suitable for all ages, including adults, students, parents that for comfortable and assured drinking experience. It's pretty color water bottles for different people needs. 2. Water bottle with hook whick easy to carry for school, outdoor sports, travel, cycling, indoor, office, gym, yoga daily routine drinking, and diet. [ 100% quality assurance ] 1. Can be changed at any time during the process of use or if unsatisfied with the color. 2. Provide a 6-month quality guarantee, and you can contact us at any time for exchange or refund services. [ Functional Water Bottles ] 1. Hidden drinking nozzle gland for clean and hygienic drinking experience, isolated from external pollution. 2. Large-opening circular design for quick and easy replenishment of moisture, takes only 8 seconds to pour all the water out. There's easy to open and easy to drink. 3. One-piece hook design for easy hanging on backpacks. It can be operated with one hand.