The Craveit Flea and Tick Collar is a long-lasting protection against fleas and ticks for your small dog. This collar features a durable, waterproof design and an emergency breaking point that allows your cat to walk and play in the rain or wet snow without worry about their safety. The collar is made of natural essential oils that are stored within the collar and released into the air over your dog’s hair and skin surface for 8 months.