SENTRY GOOD Behavior Cuddlin' Companion Toys are soft to the touch and will be your dog's new favorite toy. When combined with SENTRY GOOD Behavior Calming Drops, this toy helps alleviate problem behaviors triggered by travel, thunderstorms, fireworks, being left alone and new social situations. The Calming Drops contain pheromone technology that mimics a pheromone that the mother dog produces. Dogs associate this with the reassuring feeling they had as a puppy when around their mother. Dogs recognize these pheromones throughout life. This takes advantage of the natural process of association and nurtures a calming effect.