Feliway Cat Classic 30-Day Diffuser Starter Kit 48mLThe Feliway Classic Starter Set contains one electrical diffuser with and one 48ml vial. Helps cats adjust to challenging situations and curb stress related unwanted behaviours #1 vet recommended solution Drug free Clinically proven to reduce scratching and urine spraying Helps cats adapt to new surroundings, a new home, a new family member, or a new pet Covers up to 700sqft. For best results, avoid plugging in the diffuser under shelves and behind