UDI Original Blades for U817 U817C U817A U818A Part RC Quadcopter Spare Parts Props - 1 Set - White and Black Original UDI blades compatible with U817 U817C U817A U818A drone,exactly the same quality as the baldes come with your drone. Super balance and make the quad fly as steady as the the original propellers. Original replacement crash kit parts with high quality,light weight blades. Durable placstic materia, product color: black and white Package include: 1 set, 4 pcs main blade propellers and well packed with "tech rc" mark.