D-trans Allethrin based Mosquito Repellent Coil is designed to provide protection against mosquitoes for 8 hours. The Mosquito Repellent Coil is based on Active ingredient and contains 0.1% D-trans Allethrin. The Mosquito Repellent Coil is highly effective in killing all types of mosquitoes and for keeping homes and surroundings pests free. The D-trans Allethrin based Mosquito Repellent Coil comes in carton packs having 60 units with each of them containing 10+2 coils.