The Purple Flea and Tick Collar for Cats & Kittens is a more effective way to protect your pets against fleas and ticks. This collar features a unique blend of plant-based essential oils that repel fleas and ticks in a safe and natural way. The collar also has an emergency breakpoint design that protects your cat if she gets caught on a branch or something else by the neck. The collar is easy to use and can be worn at the same time as your cat’s regular collar.