Bens 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 wont cut it Bens 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.