Keep your furry friends hydrated with this genius gravity-fed water bottle! The Vannon 16oz bottle is perfect for small dogs, cats, rabbits, guinea pigs, and other small pets. Here's how it works: the bottle hangs on the OUTSIDE of the cage (so much easier to refill!) while the drinking part stays inside. The gravity system automatically refills the bowl as your pet drinks - no more empty water dishes! The anti-overflow design with a detachable floating disk prevents messy spills and splashes, and it actually slows down drinking speed to prevent vomiting. Made from food-grade PP material that's BPA-free and safe for your pets, with stainless steel screws that won't rust. The tooth-shaped suspension clip keeps it super secure on metal wire cages (just make sure your cage bars are between 1.1-2.24 inches apart). Cleaning is a breeze since both the bottle and base detach completely. Seriously, this water bottle solves so many problems - no more spilled water in the cage, no more struggling to refill from inside the cage, and your pets always have fresh water available. It's one of those pet products that just makes life easier for both you and your furry friends!