UltraShield(R)EX from Absorbine(R) The new standard in fly control protection, UltraShield(R) EX is the first weatherproof, sweat-resistant formula that can provide up to 17 days of fly control. Pleasantly scented with Citronella. Hardest working insecticide-repellent around and is suitable to use on horses, ponies, dogs, stalls and bedding Made with natural Pyrethrins (from chrysanthemums), Permethrin and Piperonyl Butoxide and also contains sunscreens Kills and repels insects and ticks, including mosquitoes that transmit West Nile Virus for up to 17 days Available in 32 ounce refill, 32 ounce spray and gallon For Label Information and MSDS Sheet, please click on Manufacturer"s Information to the right. Please note Continuous Spray option cannot go AIR (aerosols cannot go air)