Are your cats fighting or showing tension in your household?FELIWAY MultiCat products are a clinically proven, drug-free solution to help alleviate many of the unwanted behaviors cat owners deal with.FELIWAY MultiCat sends ?harmony messages? to cats and restores harmony between cats living together. By mimicking the natural feline appeasing messages (pheromones), FELIWAY MultiCat helps your cats live in harmony and avoid tension, conflict and fighting. Cat owners saw a 70% reduction in conflict in 3 weeks.Use FELIWAY MultiCat Starter Kit if you have 2 or more cats living together and if they show signs of tension like chasing, blocking, staring. Use the diffuser in the rooms where your cats spends the most time.Plug the diffuser in an electric socket with a minimum clear distance above the diffuser of 5 ft. (The oily vapor carrying the FELIWAY messages rises in a column of warm air above the diffuser). One diffuser covers up to 700 sq. ft. You may need to use more than one diffuser for a large or multi-floor home. Be sure to replace your diffuser every 6 months and refill vials every 4 weeks. It is recommended to replace the refill every 4 weeks, even if a small amount of liquid remains in the vial (the vial will never be completely empty).Key Features #1 brand used and recommended by veterinarians. Clinically proven to work. Can see results within 7 days. Drug free solution that helps reduce conflict between cats living together. It may help decrease fighting, chasing, blocking and staring. FELIWAY MultiCat Starter Kit includes one diffuser head that lasts up to 6 months and one vial that lasts up to 30 days. 100% satisfaction guarantee.