The Spare or Replacement Rod is designed to be used with the Parabolic Reflector 68/88 and the Direct Softboxes. Specifically, it is meant to be used with the Godox PF-M Focusing Mount. This optional rod provides support and stability to the parabolic reflector and softboxes, ensuring that they stay securely attached to the focusing mount during your photography or videography sessions. If you need a replacement or an extra rod for your setup, this spare rod will be compatible with your existing equipment, allowing you to continue achieving precise and controlled lighting effects with ease.