The rotating axis is a critical component that enables smooth articulation of the rear aircraft arms on your DJI Mavic 3. This genuine DJI part maintains precise alignment and durability during flight operations and arm folding cycles. Compatible with both rear left and rear right arm positions, it ensures reliable performance and stability. Replace if you notice resistance, grinding, or misalignment in arm movement. Genuine DJI replacement part — maintain your aircraft's structural integrity and flight safety with original components.