About this item Requirements for Pet Cages: The rabbit water bottle is suitable for metal wire pet cages and cage rods, with a width range of 1.1in. The height of the cage gap shall not be less than 1.4in. Please check out the pictures to confirm whether the cage is suitable Automatic Gravity Water Dispenser: Our bunny water bottle refills itself as your pet drinks, ensuring a constant supply of fresh water. The gravity design prevents overflow by stopping the flow once the water bowl is full, keeping your pet’s cage clean and dry Pet Water Bowl Size: The guinea pig water bottle features a spacious 3.4 inch 5 inch water bowl, ideal for rabbits, ferrets, cat, puppy, hamster, and guinea pigs, providing fresh drinking water for 5 to 7 days Great for Small Animals: Our small animal water bottle has 20oz capacity and a big water bowl, suit for dogs, cats, rabbits and other small animals in cage. The capacity is enough to provide your pet with daily water