Feliway (Comfort Zone) spray and diffusers prevent cats from urinating where they shouldn't. This fantastic new pheromone Feliway spray or diffuser duplicates the smell of a cat's natural scent glands. Cats will not soil anything close to where Feliway has been sprayed. 48 ml refill vial resolves marking problems naturally. Provides an effective way to control and manage unwanted feline behaviors such as: urine marking, scratching, stress and anxiety. Also useful in acclimating cats to new environments. Creates a calming effect. Instructions for Using Feliway® and ComfortZone™ with Feliway Type: Calming Aids