Murphy's Naturals Mosquito Repellent Incense Sticks are infused with citronella, rosemary, peppermint, lemongrass, and cedarwood oils. We left out all the ingredients we don’t want, so you won’t find DEET or petroleum in our mosquito repellent incense sticks. Our sustainable formulation of these key plant-based ingredients burns clean, naturally. Each stick burns 2 to 2.5 hours (wind may reduce burn time) DEET-free Petroleum-free Refreshing scent Weight: 0.256 lbs. Dimensions: 1" x 2.5" x 12"