Nuisance flies kick the bucket quickly and effectively with the QuikStrike Fly Strip from Starbar's patented triple-action attraction power. Two feeding attractants and a fly sex pheromone bring flies to the area, where they feed on the yellow-coated curved surface containing the active ingredient, 1% nithiazine, in a sugar-based matrix. Quick Strike Fly Strip kills flies within seconds, for up to 8 weeks. Crush one ampoule to activate attractant; activate the second ampoule after 2-4 weeks and reverse the strip. For optimum results, place vertically on a stationary object close to ground where flies feed, out of direct sunlight and moisture. Use 1 strip per 100-150 sq ft. Measures 12 in L. Compatible with IPM programs.