1pc DUALSKY Motor Set(1 Motor+ 168inch Propeller+Speed Controller). 1 We accept return goods within 30 days after you received the item. 4 The merchandise MUST BE in unused condition AND in its original packaging (cannot be glued or tampered with in any fashion). Should you have an issue with any of our products or service. Your satisfaction is our greatest driving force. Our store continuously pursue excellent quality. Sincerely welcome every friend’s guidance and support. We offer 24 hours customer services on weekdays as well as hours on Saturday (except for major holidays). We believe in the timeliness of customer service, and would like to do everything to satisfy our customers. If you have any problems, comments or suggestions, please contact our customer service representatives.