One sleeve of Demon WP includes 4 water-soluble packets, at a mixing rate of 1 packet per gallon of water. Each treatment lasts up to 3 months. With its convenient packaging and easy-to-mix formula, Demon WP provides quick knockdown and a long lasting residual on a variety of surfaces, both indoors and outdoors. Demon WP is also labeled for the control of more than 30 other pests, including roaches, spiders and ants. This product has no odor.