Sealed and used. Sold as shown.                                                                                                                                              https://uav-en.tmotor.com/html/2019/VTOL_0613/270.html                                                                                                                        V series propellers are specifically designed for VTOL airplanes, which require more thrust than the comparable multi-rotor copters. With bigger pitch and optimized blade shape, the overall efficiency and max thrust of v series increases by 2% and 10% respectively, in contrast with propellers for multi-rotor copters.