These Carbon Support rods are a great replacement for the 500 class helicopter
500 Class Metal Tail Holder & Rotor Assembly (Torque Tube Version)
500 Class Plastic Tail Blade (76mm from bolt hole)
500 Class Tail Boom (Belt Version)
500 Class DFC Main Rotor Head Assembly
500 Class DFC Main Blade Grips / Holder
500 Class Drive Gear Set