Kayari mosquito repellent coils have herbal ingredients like citronella, eucalyptus, and turmeric which are common natural herbs and effective essential oil that works against mosquitoes. there are 4 scents, including Sakura / Lavender / Rosemary and herbs. The entire coils can be used, it is a good choice and convenient for keeping away mosquitos. The product was designed to be used in well-ventilated areas, night open areas, camping or mosquito abound areas.