<p><span class="h-card" translate="no"><a href="https://mastodon.social/@whitequark" class="u-url mention">@<span>whitequark</span></a></span> <span class="h-card" translate="no"><a href="https://astronomy.city/@hendric" class="u-url mention">@<span>hendric</span></a></span> It's the packaging the parts are shipped in. The packaging holds and positions the parts precisely so they can be taken out and assembled using pick-and-place automation . ("Vac" for "vacuum-formed" perhaps?)</p>