Natural Flea and Tick Collar for Puppies - 12-Month Protection, Safe Pest Control - Waterproof, Strong - Free Flea Comb and Tick Tweezer Included - 2-Pack, 13.8 InchesBrand: ShengKou Features: EFFECTIVENESS: The collar not only eliminates existing fleas, but also repels new ones to prevent re infestation. Each collar offers protection for six months, so two collars will provide a full year of coverage, reducing the need for frequent replacements. SAFETY: Made from natural ingredients and safe materials, the collar is endorsed by some veterinarians. Although rare, allergic reactions can occur, so it's not