Hydrate with ease. This bottle delivers fluid through a nozzle with jet-like flow. Features an auto shut-off valve to prevent spills. Bottle body mates up perfectly with Dawn To Dusk cages. Bottles are BPA-free, biodegradable, phthalate-free and are recyclable. Pop aN Loc Cap has Dawn to Dusk’s largest valve aperture providing maximum flow that pops open with a pull, locks into place with a tap