Coghlan's Mosquito Coil Bundle: 1 Mosquito Coil Holder & 2 Mosquito Coils Coghlan's Mosquito Coil Bundle includes: 1 mosquito coil holder & 2 boxes of mosquito coils (20 coils total) Coil Holder is easy and convenient to use; designed for safety by holding coil firmly in a glass fiber net Hang or lay flat Each coil lasts up to 8 hours to repel mosquitos Allows coil to burn completely; Ash remains in holder