This is good product if you are willing to get instant relief from Mosquitoes.
I bought this product for 10 INR for that includes Ten cards.
Used one card and boom. Within minutes mosquitoes are dying.
This product is handy in the area where Electricity are not available as it doesn’t require any electricity to operate.
You have to burn this card to use it, keep children and kids away from this product.
Though regular use are not advised for health concern, keep your room clean and use net.