Sentry Calming Collar For Dogs, 23", 3 Pack has a pheromone technology that 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
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