It's as simple as a line across the floor. Keep your home free of ants, cockroaches and other crawling insects with HIT Chalk. Draw a line across the floor or any other surfaces where these pests frequently crawl. These will be killed the moment they cross this line. So you can be sure they wouldn't dare cross the HIT Chalk line.
Use it in the night after finishing your kitchen work
Draw 2-3 thick parallel lines around the areas frequently visited by cockroach.
Cockroaches die when they try to cross this line.