Protos 380 Metal Main Blade Holder Set V2

New arm has 2 option holes. outter hole is same position as plastic one Includes: Metal main blade holder*2 Metalu00a0main blade holder arm *2 M2*4*4 4.5mm ball*2 5*10*4 bearing*4 Used for:u00a0ALL Protos 380category-helicopter,category-helicopter-brand-xl-power-heli,category-helicopter-brand-xl-power-heli-model-protos-380,category-helicopter-brand-xl-power-heli-model-protos-380-options-head-parts