Ortho ant & roach killer kills ants, roaches, spiders, scorpions, and stink bugs. Kills on contact. Will not stain or discolor surfaces. Also eliminates 99.9\% of household germs that insects may leave behind on hard, non-porous, non-food contact surfaces. Ideal for use indoors along baseboards, under appliances, in kitchens, bathrooms, or other places insects may be found. Active ingredient: Cypermethrin.