Mosquito Insect Incense Repellent Sticks,100% Natural and DEET Free, Bamboo Infused with Citronella, Lemongrass (16 Pack) 100% natural made with natural plant oils including citronella and lemongrass 16 Thick Sticks per pack. Each incense stick burns 2.5-3 hours depending on humidity and wind speed. keeping mosquitoes away over 12 hours Multiple Use: Repels mosquitoes, flies, and other biting flying insects Good Smell! 10% Active Ingredients. Most major brands contain less than 3%. Supported Area - Ideal control solution for outdoors, whenever you are on the patio, deck or backyard; at the park, dock, balcony, garden, camping, and fishing