Pic Mosquito Repelling Coils with Metal Burner - The PIC Coil & Metal Burner and Carabiner contains 4 coils and one portable metal burner and carabiner clip. Mosquito Coils repel mosquitoes in confined areas outdoors. To use, simply light your mosquito coil, fasten the top of the metal canister, clip the container to your backpack and explore the outdoors. It is useful in places where there is little or no breeze. Do not use indoors and see packaging for additional instructions for proper use. Coils repel mosquitoes and are effective when positioned every 10 feet. Each coil burns for 5-7 hours and is best used outside on patios and porches. For outdoor use only. Features For Outdoor Use Only Each Coil Burns 5-7 Hours Outdoors Place One Coil Every 10 Feet Use on Patios and Porches Repels Mosquitoes One Metal Burner, Carabiner Clip and 4 Mosquito Coils Included