The Kiltix Tick Collar is a robust, easy-to-use solution for flea and tick control, starting to work as soon as it's placed around your dog's neck and protecting for months at a time. Immediate protection: begins controlling fleas right upon application. Long-lasting: controls fleas for up to 5 months. Comprehensive tick control: aids in the control of paralysis ticks for 6 weeks and controls brown dog and bush ticks for up to 5 months. Beyond your pet: helps address fleas in your dog's surroundings such as bedding, carpets, furniture and yard. Adjustable: can be tailored to fit dogs of all sizes comfortably. Fitting tips: fit the collar so it's neither too tight nor too loose, and re-check the fit regularly as your dog grows or changes weight. An effective way to help prevent flea infestations and tick-borne disease, keeping your dog healthier and happier.