Water Bottle with Tick MarksThe surface of the student plastic square water bottle is equipped with a milliliter scale, which can always grasp the daily water intake and drink water scientifically. 360 Leak-Proof DesignThe dirt cover of the plastic drinking water bottle is provided with a sealing ring, which can prevent water leakage 360. Healthy MaterialThe sports water bottle with lanyard is made of eco-friendly plastic, no harm, no need to worry about any harmful chemicals. PortableFashionable and simple water bottle with a lanyard, you can go for both indoor and outdoor exercises with it, including cycling, running, camping, hiking, yoga, treadmill, etc. Healthy CompanionAdequate drinking water will promote our metabolism and keep us active. A good sports water bottle can accompany our healthy growth. This summer fitness water bottle is also a good gift for family and friends.