OverskyRC Co, Ltd. Established on Dec. 2008. We are a company specialized on design, development and production of all kinds of micro brushless motors, micro brushless FPV quad copter and related accessories, meanwhile, we produced some micro props such as 90mm, 60mm 2-blade propeller, 35mm 4-blade propeller, 40mm 5-blade which are all be used on our own micro copters. Scisky, Oversky? Are our brands legal registered at the moment.