★ Automatic gravity design, by supplementing the pet's water supply, when the pet keeps the moisture level down, the bucket automatically fills the tank. ★ Easy-to-grip incision makes the feeder easy to operate Large opening makes the bottle easy to clean ★ This type of gravity drinker is designed with durability in mind, allowing your furry friend to maintain moisture and simplify your life ★ Parents of pets, like to spend more time with pets, less time to supplement pet water supply