XLPower Ball Link For XL520/550/Nimbus550

category-helicopter,category-helicopter-brand-xl-power-heli,category-helicopter-brand-xl-power-heli-model-xl-power-520,category-helicopter-brand-xl-power-heli-model-xl-power-520-options-hardwarem2 ball link * 6, m2.6 ball link * 4m2 ball link * 6, m2.6 ball link * 4m2 ball link * 6, m2.6 ball link * 4m2 ball link * 6, m2.6 ball link * 4