1. The product is made up of High-Grade raw material adopting international recent technology and employing advanced produce technology. 2. It has a powerful effect against mosquitoes ,cockroach,fly etc ;and has no harmful effect the humans. 3. Its Kill-Speed is very quickly. It gives a pleasant natural fragrance after spraying. 4. It belongs to green product of environmental protection. The aged and children are even more suitable to use. 5. 2-3 years storage without leakage, as a result of anti-corrossive process. 6. Easy operation. Shake lightly before spray.