[Natural Calming Dog Collar ] Infused with pure essential oils, this collar soothes dog anxiety without or harsh chemicals. Hypoallergenic TPE material is and safe for all breeds. [Fast-Acting Anxiety Relief for 60 Days] releasing continuous calming pheromones for up to 2 months. Perfect for thunderstorms, fireworks, travel, or vet visits，It is an ideal solution for multi-dog families or users with long-term needs [Curb Barking, Chewing & Destructive Habits] Promotes a secure feeling to reduce anxiety-driven behaviors. Helps dogs adapt to new homes, separation, or noisy environments—an essential tool for pet owners with anxious pups. [Cut-to-Fit Collar for Small to Large Dogs] The dog anxiety collar adopts a flexible and adjustable design, which is comfortable to wear. The collar is 25 inches long. You can adjust it to the appropriate size according to the size of the dog's neck, and then leave an adjustable range of 3 to 5 inches and cut off the excess part of the collar. It is almost perfect for dogs of all types of weights and sizes. [4-Pack Waterproof Calming Collars] Individually packaged in a gift box—Includes 4 individually packaged collars great for multi-dog homes or long-term use. The waterproof construction means your dog can wear it in the rain or during baths without reducing effectiveness.