Quantity: 6Coverage: 100 Sq. Ft. Per TabletUse To Kill And Control Mosquito Larvae For 30 Days Or More On Water SurfaceCompletely Non-Toxic To Animals Such As Fish, Birds, Wildlife And PetsCan Be Used In Fish Habitats, Flower Pots, Tree Holes, Bird Baths, Roof Gutters, Rain Barrels, Old Tires, Unused Swimming Pools And MoreActive Ingredient: Bacillus thuringiensis