Includes 120 hours of mosquito protection refills For use in fuel-powered Thermacell Repellers, lanterns and torches Each repellent mat lasts up to 4 hours and each fuel cartridge lasts up to 12 hours No spray and no mess. Scent free and DEET free Active ingredient is Allethrin, a sunthectic version of a naturally occuring repellent Found in chrysanthemum flowers Package contains : 30 repllent and 12 fuel cartridge
