SAFE, HEALTHY AND EASY INSTALLATION: Made of non-toxic and durable PP plastic, the sealed design prevents water leakage and dust from entering. Compared to large drinking glasses, water is less prone to contamination and does not cause mouth inflammation because their jaws are exposed to water for a long time. Installation is quick and easy using the included screws and can be secured inside the cage. Noise-Free Design: The automatic pet water dispenser adopts a design gravity flow, which can precisely control the volume of water and prevent overflow. Unlike ball bearing water bottles, pets make no noise when drinking. The unique mute design allows you to have a quiet environment and easy to rest. Large capacity: 500ml large capacity, if you're away from home all day and your pet doesn't have enough water to drink, this 500ml water bottle is a must-have for you. This automatic rabbit water feeder is suitable for all kinds of small animals, such as rabbits, hedgehogs, rabbits, chinchillas, guinea pigs, ferrets, hamsters, etc. Can be used inside or outside the cage: can be installed inside or outside the cage as needed. If your animal is naughty, it is recommended to install it outside the cage. You can easily activate or deactivate the water system for cleaning and filling.