Adventure Med Kits 00067070: Ben's 100 Max Tick & Insect Repellent contains the maximum amount of Deet for use in areas of high bug density with intense biting activity. It is effective at repelling mosquitoes, ticks, black flies, biting midges, sand flies, chiggers, fleas and stable flies. For use when other inesct repellents just won't cut it, Ben's 100 MAX provides up to 10 hours of prection from ticks and insects that may carry West Nile Virus, Lyme diease, Malaria, Eastern Equine Encephalitis (EEE), and other infectious diseases. Small portable size is easy to carry, while providing enough repellent for several days on the trail.