Say goodbye to aggression and stress in your multi-kitty household with Vetality Harmony Pet Calming Litter Box Diffuser. This innovative product attaches directly to your litter box, requiring no plug, batteries, or messy cords. It uses the P.E.T. pheromone, clinically proven to be two and a half times more effective than other leading calming brands in reducing stress and related behaviors. With no need for electricity, this diffuser is convenient and safe for your furry friend. It stops aggression, jumping, marking, and hissing, and can reduce 75% of aggressive behavior within just two hours of use.