High quality black mosquito coil 1. Features:result in short time, made up of high-grace raw material, powerful effect against mosquito but no harmful 2. Used in the house, hotel, resturant, office, etc. The aged and children are even more suitable to use the mosquito-repellent incense. 3. Smokeless, no offensive odor Black mosquito coil incense: 1.Mini quantity:20' container 2.We will delivery after we received your deposit 15 days later. 3.Packing: Inner package: 5 double coils, 5 metal stands, 1 plastic tray, 1 inside bag , 1 colorful box and 1 Outer package:60 boxes/ctn, Customers' package requirement. 1. Micro-smoke, no harm 2. Size: 120mm/135mm/140mm 3. Burning time: over 8-12 hours 4. Long effect of killing mosquito