Laojun is listed as a major health program established by Chinese Preventive Medical Academy. We have been specialized in this area for more 10 years, and our products enjoy great popularity all over the world. Prallethrin is the active element, by the scientific directions for producing chemical, it can volatilize equably and drive off the mosquito effectively. OEM is accepted. Inner packing: 30pcs/color box Outer packing: 10 boxes/ctn