Formulated with eucalyptus oil, citronella oil and cherry blossom essential oil, this product uses high permeation technique to infuse PMD, a natural anti-mosquito ingredient endorsed by the U.S. Centers for Disease Control and Prevention (CDC) and the U.S. Environmental Protection Agency (EPA), into the mosquito repellent card. Simply insert the card into the card holder and attach it to your personal belonging to repel annoying mosquitoes, midges, gnats, ticks and flies while releasing a cherry blossom scent. It helps to protect you from the threat of dengue fever and Japanese encephalitis. Free of DEET and camphor, it is safe, reliable and causes no harm to humans, animals and the environment. Each box contains 3 mosquito repellent cards. Each card can be used repeatedly for around 4 to 5 times.Functions:?- Contain PMD, a natural anti-mosquito ingredient endorsed by the U.S. CDC- Effective in repelling mosquitoes, midges, gnats, ticks and flies- Spread the mosqui