Mortein Mosquito Coils repel mosquitoes for up to 8 hours. The unique metal burner allows a convenient and effective way to burn coils to repel mosquitoes outdoors. Repels mosquitoes for up to 8 hours Unique metal burner allows the coils to be used on a flat surface or to be hung near the area you want to keep mosquito free Resistant to breakage Ideal for Outdoors: BBQs, Entertaining, Camping, Around Patios, and Other Outdoor Areas Available in a 30 coils value pack in unique metal burner