Features: Cost-effective package: Calming collar for dogs 3 packs are specially designed for dogs that are frightened, stress, anxiety or hyperactive each calming collar is individually packaged, all in a beautiful box, very easy to use and store. Plant Essential-Oil-Safe Effect: Dog pheromone collar is made of and quality material, Hypoallergenics and non-addictive, calming collar for dogs anxiety helps relieve pet tension and anxiety 60 Days continuous Calming:The Calming dog collar releases pheromones for up to 60 days. Provides superior, longer-lasting pheromone delivery. The dogs pheromone collar is waterproof, so there is no need to remove the collar when bathing or playing in the rain. Dog calming collar for anxiety can be worn continuously and changed every 4 weeks for best results. Quickly improve bad behavior: Anxiety collar for dogs can start working within 1 hour and continuously release pheromones,which effectively relieves and fear or stress by high temperature, noise, traffic, travel, veterinary visit, pet loneliness, Firework, Thunderstorms, Separation Anxiety. Stop problem barking, destructive chewing and other bad behaviors, helps Dogs Adjust to Challenging Environments. FLEXIBLE ADJUSTMENT – SUITABLE FOR ALL SIZES OF DOG:The Dogs calming collar for anxiety is very flexible and comfortable to wear, with an adjustable length. You can choose the right length and then trim off the excess so it fits perfectly on almost any type of dog of all weights and sizes. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Cat version length: 38cm; Dog version length: 62cm Package List: 3pcs Calming Collar