2 Envelopes Demon WP Insecticide/Pesticide w/Cypermethrin Controls +/- 30 Pests Convenient packaging and easy-to-mix formula available in a one pound jar and in water-soluble packets, Low use rates that can provide pest knockdown in less than an hour, High insecticidal activity, long-lasting residual control and low volatility Easy-to-use formula dissolves quickly to create an ideal suspension that wont clog equipment Versatile enough to be used on both porous and nonporous surfaces and can be used indoors as a crack and crevice application Ideal for clean-out of cockroaches, spiders and other pests in residential and commercial non-food handling areas. Knowing the product works across multiple areas on several pests reduces the stress resulting from customer call backs.