The Asobu® Dog Bowl Bottle is made of 100% non BPA , double wall, vacuum insulated, copper-lined stainless steel. The easy grip handle makes it convenient to carry even on long walks with your dog. It is equipped with a detachable stainless steel/plastic bowl which discreetly twists off the base of the bottle when it is time to re-hydrate your dog. The anti-slip base can make it easy for your pets to drink from, and the large capacity ensures your dog is sufficiently hydrated.