Kills fast-on contact, & keeps on killing with residual action even after, for up to 4 weeks! * 2pk Easy to use aerosol can, No lingering chemical odor, * Kills: Ants, Cockroaches, Water Bugs, Silverfish, Crickets, Spider * Raid Gel: Easy to apply, Leaves little to no mess, * Gel works for over a month, Kills entire colony of ants,