The PolarPro Gimbal Lock for the DJI Mavic camera is a replacement for the stock lock provided by DJI. The PolarPro Gimbal Lock adds a lens cover section to protect your camera, or filters during transit. The PolarPro Gimbal Lock is black, opposed to the clear DJI stock lock, making it more visible to see, reminding pilots to remove before startup. For pilots needing to replace a lost stock lock, or increase lens protection, the PolarPro Gimbal Lock is a great option.