Photo of aircraft container and pallet loader showing its numerous powered rollers for shifting and rotation of containers. Taken in Hong Kong International Airport.
<a href="//commons.wikimedia.org/wiki/User:Jamesshliu" title="User:Jamesshliu">Jamesshliu</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>