TOOGOO(R) 250ML Portable Plastic Pet Dog Cat Water Feeding Drink Bottle Dispenser Rubber flow-control valve in the cap prevents leaks, spills, and backwash contamination. Easy-to-use, bottle folds into the tray for easy portability Great for a Dog or Cat, taking along while Traveling, Hiking, Camping. etc. Has a carrying cord, very convenient. You fill the bottle then tilt it & squeeze to fill the tray so they can drink.