These are the Main Rotor Blades for use on the Heli-Max Novus 125 FP 2.4GHz Nano Sized RTF Helicopter (HMXE0807). FEATURES: Nylon construction Black in color INCLUDES: Two Main Rotor Blades - part #1 on parts list REQUIRES: Installation on the helicopter SPECS:Length: 116mm (4.57") Width: 21mm (0.83")