Doggy Man Chitchana Eco Drinker for Dogs and Cats I opened the package, but I never used it. Although it is unused, please understand that it has been stored at home. Watering nozzle perfect for small dogs and cats with small mouths. They can always drink clean water. Pet bottle attachment type Can be attached to commercially available pet bottles of 250mL, 350mL, 500mL, and 1L. *Pet bottles are not included. Prevents dust, insects, and pet hair from entering, providing clean water. Small-mouthed cats and small dogs can drink easily in a comfortable posture. OK to attach to thick plastic fences. #DoggyMan #Dog #Cat #PetBottle #Drinker