The Portable Seafaring Bottle is formed of the high-quality food-grade plastic. It’s BPA-free with FDA certification, Leak Proof. Enjoy the outdoor activities together with your pet, to form sure your dog our friends forever. Designed with a replaceable carbon filter, can remove impurities, chlorine and eliminate odor. Ensure your pet drinking clean and non-toxic water. Dog bottle is a convenient one-key control design, press the button once for releasing water to drinking trough, another button pressing for locking water, also allows you to return the unused water heater into the bottle. Portable Puppy Water drink bottle’ water key allows you to fill through with water and return the unused water heater into the bottle. The dispenser is meant with a colloid signet ring which may prevent water leakage efficiently. Could put into the backpack won't get wet.