We're going to dedicate ourselves to offering our esteemed shoppers with the most enthusiastically considerate solutions for Silicon Dioxide SiO2, , , ,. Our company insists on innovation to promote the sustainable development of enterprise, and make us become the domestic high-quality suppliers. The product will supply to all over the world, such as Europe, America, Australia,Slovenia , Madrid ,Buenos Aires , Chicago .We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information if you have any questions. We are glad to work for every client.