U821 battery 3.7V 350mAh UDI U821 helicopter spare parts$9.98
U821 english manual book UDI U821 helicopter spare parts$7.98
Short shaft U821 main motor UDI U821 helicopter spare parts$7.98
U821 back shaft for wheel UDI U821 helicopter spare parts$3.98
U821 tail blade + tail motor + tail motor deck UDI U821 helicopter spare parts$5.99
U821 screws pack UDI U821 helicopter spare parts$3.99
U821 USB charger wire UDI U821 helicopter spare parts$3.98
U821 balance bar UDI U821 helicopter spare parts$3.98
U821 main shaft UDI U821 helicopter spare parts$3.18
Long shaft U821 main motor UDI U821 helicopter spare parts$7.98
Red U821 outer cover UDI U821 helicopter spare parts$7.98
U821 small iron bar for fixing the balance bar UDI U821 helicopter spare parts$1.98