Harris Roach Traps are specially formulated lures that are irresistible to roaches and other insects. Simply place where insects are seen and throw away the trap after insects are caught. We recommend using these traps in combination with Harris roach tablets or Harris roach killer. A single roach or two is often a sign of an infestation. Attacking the problem using several different methods is the optimal course of action. Natural and pesticide free. Discreet, slides easily under furniture and appliances. For both residential and commercial use.