This pack of Coghlan's Mosquito Coils is an economical way to protect yourself from mosquitoes. Each coil lasts 6 hours or more and you get 10 in each pack and a handy metal stand. While it burns, it releases an active repellent for mosquitos and other flying insects. Recommended for outdoor use only around decks, patios and other outdoor areas where you want to help minimize the nuisance of mosquitoes and bugs. Keep out of reach of children and pets.