Walkera (HM-4G6-Z-14) Holder Frame = Walkera (HM-4#6-Z-11) Holder Frame
Walkera (HM-4G6-Z-20) Tail Driven Shaft = Walkera (HM-4#6-Z-17) Tail Driven Shaft
Walkera (HM-4G6-Z-24) Stabilizer Set = Walkera (HM-4#6-Z-21) Stabilizer Set
Walkera (HM-4G6-Z-26) Tail Blades Rocker = Walkera (HM-4#6-Z-23) Tail Blades Rocker