These self lighting Swift Lite Charcoal Discs are essential for burning resin, loose herbs, or incense powders. Simply light the edge of the charcoal, then place the disk in a fire proof incense burner. Within minutes the charcoal will be ready to burn your favorite resins or powders. The disks have been sealed in air tight foil packaging to ensure freshness. In order to maintain freshness, opened rolls should be resealed and stored in a cool dry place. Swift Lite is a top quality brand, as they burn evenly, stay lit, and have a long burning time. Each pack includes ten charcoal discs.