Super Pet Wide Fill Water Bottle, 8 oz. Made of durable PBA-free plastic so it's safe for your pet Stainless steel double ball sipper tube helps prevent leaks Heavy duty spring attachment hanger safely secures the water bottle to any small animal home Includes both ounce and milliliter markings on the bottle for easy water measurement 1.25-inch water fill opening is big enough to allow ice to be added for warm weather days