Cats calming collar pack of 4 relieves cat anxiety and stress, calming collar cats can be worn continuously for best results,up to 30 days.Calming cat collar value packCalming collars cat pack of 4 to ensure continuous calming support for your cat.Each cat pheromones collar is carefully packaged in beautiful box for easy storage and access when needed. Individual packaging ensures the convenience and freshness of each pheromone collar for cats.Pheromones cat collar prolonged calming effect,natural soothingCat collar calm kicks into action in as little as 1 hour and provides calming pheromone release for up to 30 days.cat calm collar provides your cat with ongoing anxiety and stress relief.Calm collars cats is designed to mimic the natural pheromones released by female cats to create a comfortable environment for your cat.