A Must Have for Busy Pet Keepers - If you travel a lot and are worried about your small pet not getting enough water, then this 500ML water bottle is a must-have. It can ensure your pet stays hydrated when you are gone without making a mess in the cage. Use Inside and Outside the Cage - You can fix it on the outside or inside of the cage according to your needs. If your pet is naughty, it is recommended to install it outside the cage. You can easily turn the water dispenser on or off for cleaning and refilling. Drink Water Without Noise - Kaisheng automatic pet drinking machine adopts gravity flow design, which can control the water volume and prevent overflow. Compared with ball bearing water bottles, it will not make annoying noises when your pet drinks water. Make Your Baby More Comfortable - Compared with traditional water bottles and bowls, our suspended water fountains provide your pets with a more comfortable and sanitary drinking experience. Fix it at the right height of the cage and they won't have to lift their necks. Dustproof and leakproof: The sealed design can prevent water leakage and dust ingress. Compared with a large water bowl, the water is not easily contaminated and will not cause oral inflammation due to prolonged contact with water on the chin.