Safe Material: Children's water bottles are made of polypropylene material and can hold 720 milliliters of liquid to meet your daily water intake.Sealing mark: The bottle mouth of the water bottle adopts a sealing mark, which is not a leg when inverted and can be sealed in a bag. Convenient rope sign, practical and beautiful.Opening the lid: The key to opening and closing, the vitality of drinking water rises. Hi quality drinking water bottles keep you hydrated and energetic throughout the day.Application: for hiking, cycling, cam riding, running, yoga, or any other exercise at home, school, gym, and office.Reminder: Do not put water or beverages above 40 ℃ into children's water bottles to avoid burns.