1. [High Cost-Effective Suit]: Calming collar for cats can start to work within 1 hour and continue to release pheromones for up to 30 days, effectively alleviating cat anxiety relief and stress, and quickly helping pets improve their bad behaviors. 4 individually packaged cat calming collars are packed together in an exquisite packaging box, very easy to use and store 2. [ Calming Effect]: Calming collars can imitate the parent pheromone and release the pheromones for up to 30 days. Provide excellent and longer-lasting pheromone delivery. Cat calming collar for anxiety can be worn continuously and replaced every four weeks. Cat collars is waterproof, so there is no need to disassemble it when bathing or playing in the rain 3. [Natural Plant Essential Oils]: Pheromone collar for cats is specially designed for cats that are frightened, stressed, anxious or hyperactive. Cat calm collar is made of and high-quality TPE material, pure natural chamomile essential oil and lavender are hypoallergenic and not addictive, helps relieve pets' tension and anxiety, helps them relax and eliminate aggression.(Contains no harmful ingredients citronella oil) 4. [Quickly Improve Bad Behavior]: Calming cat collars can effectively alleviate bad behaviors related to fear or stress caused by heat, noise, traffic, travel, veterinary visits, pet solitude, fireworks, thunderstorms, separation anxiety, and unfamiliar environments. Calming collar can effectively help your pets relax and make your kitten feel comfortable