Flea and tick collars are devices used to protect pets from fleas and ticks. They are designed to deliver enough pesticide to continually kill external parasites for several months. The fleas found on dogs (Ctenocephalides canis) live off the blood of their host, and the adult female flea lays eggs that turn into larvae. The larvae go through an intermediate stage before entering adulthood and in their normal lifespan, which is approximately nine months, two adult fleas can produce over a million offspring. In the process of reproduction, fleas cause painful annoyance to dogs, making dogs scratch and bite themselves most of the time. That makes their coat roughened and irritates their skin, and can lead to severe flea allergies. Controlling these pests is a very important task for every dog owner, and flea collars offer long-lasting performance. Source : petcoach.co A flea and tick collar is a plastic strip made by mixing an insecticide with plastic resins and molding the mixture in