The AutoDogMug® Leak-Tight is the easiest & fastest way to keep your dog hydrated on the go! Public water bowls can contain harmful pathogens and travel water bowls are messy and an inconvenience to use. Squeeze and water fills the bowl for your pup to drink, release and the remaining water returns to the bottle, not wasting a drop. Now, you can twist the lock in the center of the bowl to render a leak-tight seal, keeping your backpack dry when storing! Comes with a carabiner which can attach to a pack or your belt loop.