Insect Shield Insect Repellent Towel. One-step controlled application of DEET (30%) insect repellentsafer to use than aerosol and pump sprays. Effective long-lasting protection against disease causing insects (including mosquitoes ticks a variety of flies, gnats, chiggers and fleas) that carry West Nile virus, Lyme disease, malaria and dengue fever. Waterproof and greaseless. Each 8" x 10" towel individually packaged for easy traveling and storage. EPA Registered. 100 towels per case.