No installation necessary. Product is ready to use out of the box. Geraniol Insect-Repelling Wristbands are an effective alternative to chemical-based insect repellent spray. Geraniol is a naturally occurring essential oil found in plants such as geraniums, bergamot, carrot, lemon, lavender, blueberry and rose. Primarily used in perfumery, geraniol has also been proven to repel pests including mosquitoes, houseflies, cockroaches, fire ants, fleas, gnats, ticks and no-see-ums. Geraniol was discovered, tested and patented by the University of Florida.