Calming cat collars can effectively relieve bad behaviors such as fear or stress caused by high temperature, noise, traffic, travel, veterinary visits, pets alone, fireworks, thunderstorms, separation anxiety, unfamiliar new environments, etc. cat calming collar for anxiety can effectively help your pet relax and make your kitten feel comfortable. Immediate effect within 1 Hour, quickly help improve their bad behavior and reduce pet stress. Calming collars can imitate the parent pheromone and continue to release pheromones for up to 30 days. Safe, harmless and not addictive. Cat calming collar for anxiety can be worn continuously and replaced every four weeks. One Size Fits All, just cut the extra length to create your cats perfect fit. Cat calming collar is waterproof, so there is no need to disassemble it when bathing or playing in the rain. Tips: Keep out of reach of children; wash hands with soap after wearing. Since each cat's constitution is unique, the calming effect can be affected by many factors. Such as wearing time, external environment, cat genes, the results may vary.