Sentry Calming Collar for Cats - Effective Cat Calming Aid Does your cat need help with separation anxiety, excessive meowing, destructive behavior or inappropriate marking? Try the Sentry Calming Collar for Cats.How does it work? This Calming Cat Collar from Sentry mimics the pheromone that a mother cat produces to calm and reassure her kittens. Serving as an effective cat calming aid, this pheromone collar helps to alleviate stress-induced behaviors in even the most finicky of felines. This calming cat collar has an inviting lavender and chamomile scent, a soothing fragrance. Effective and long-lasting, this collar will last up to 30 days and is safe for cats and kittens alike with necks up to 15". Furthermore, this pheromone cat collar is effective and versatile enough for use at home and on the go, unlike other products that only work in a particular area. When it comes to the health and well-being of their favorite feline friends, pet parents want the best for their cats to keep them happy and healthy. Alleviate your cat's stress-induced behaviors, such as inappropriate marking and excessive meowing, with this soothing and calming, lavender chamomile-scented pheromone collar from Sentry.