Features: Pet Cats & Dog Calming Collar: The pet calming collars use soft and skin friendly silicone, continually release cat pheromone within an hour, soothing pet by imitating the way mothers release natural lactation pheromone, comfortable to wear, help ease pet stress, reduce anxiety. Long Lasting Calming Effect: The calming collar can release of pheromone imitating from parent calming ways for up to 60days, efficient to calm pet through continuous wearing and help pet keeps emotion stable, waterproof silicone material and no need to remove the collar while shower. Efficient for Pet Bad Emotion: The calming collar works within one hour, effectively relieve stress, rest less barking, noise, thunderstorms, loneliness, fear and bad emotions, meanwhile assist to correct pet bad behavior, such as destructive tearing furniture, aggression eliminate, help them quickly adapt into new environments. Selected Material: The pet calming collar made of high-quality silicone material,hypo-allergenic, non-addictive and safety lavender essential extracts oil to achieve great soothing effect for your pet dog, cats. Adjustable Size: The calming collar with adjustable buckle, you can choose the appropriate length according to the size of the cat, dog, durable and easy to use, suitable for cats of all weights and almost any size, soft skin friendly material reduce the discomfort when the cat wears it for either for the first. Specifications: Material: Silicone Style Option: for Dog/for Cats Product Dimension: approx. Dog style length 70cm/27.56 inch, Cats style length1cm/14.96 inch Package Includes: 1 x Pet Calming Collar note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.