Sentry 30 Day Calming Collar for Dogs - Lavender/Chamom - 3 Pack

• Pheromone technology is proven to modify stress behavior such as inappropriate marking excessive barking and chewing
• Modifies stress-related behavior that may occur during travel thunderstorms fireworks and new social interactions
• Sustained released pheromones are proven effective to last up to 30 days.
• Helps dogs and puppies feel safe and secure
• Safe & effective - can be used without long-term side effects