Expanding the Tripod Case:
 
  1. At the end of the tripod bag, fully unzip the expansion end all the way around until the zipper and teeth are no longer attached.
  2. Grab the pull hand and pull the expanding section outward.
 
Do the reverse to compress the expansion back inside of the case. Push the expansion in far enough for the zipper puller and teeth to meet. Line up the zipper and teeth (like on a zip up jacket) and fully zip the zipper all the way around to securely close the end again.