Come and Check Our Branding Solutions.The portable dog water bottle made of high quality food grade material, make sure your pet completely safe when they use our dog water dispenser bottle. One hand operation, press the button to fill water, release it to stop water, and pull up to lock the button. Unused water can go back into the bottle easily by pressing the water key. Reasonable capacity, enough for outdoor walking, hiking and traveling. It is 300ml capacity, there are 350ml and 550ml available. Pls check inventory and detailed info before placing your orders.