Bob Martin FleaClear Spot On for Medium Dogs is a fast action flea and tick treatment for 10-20Kg dogs. Providing up to 8 weeks protection from fleas and up to 4 weeks protection from ticks with just a single treatment, the FleaClear Spot On is a great way to treat and prevent fleas. ??However this product is not to be used as a preventative for ticks as it only kills the tick, it does not stop it from attaching. For use on dogs over 2 months old, this treatment and regular cleaning of your pet"s bedding can help to??eliminate the threat of an infestation, keeping your dog flea free! Follow all instructions and directions of use carefully.