We don't know what we're looking at. But it's pretty cool. The Russo Bros., Joe and Anthony, are gearing up to shoot Avengers: Infinity War in the New Year, and over the last few months, they have been teasing various locations and other tiny tidbits from the pre-production work they've been doing extensively since wrapping on Captain America: Civil War.

The Russo Bros. are set to direct Infinity War and Avengers 4 back-to-back, though the second one of these Phase 3 adventures still has no title. The duo have quickly taken over the heavy lifting in the Marvel Cinematic Universe, making their debut on Captain America: Winter Solider before moving onto Civil War and these two defining chapters in the current Marvel saga. They seem to have a firm grip on all the characters involved, and they also seem to know what fans want while adhering to the signature Marvel way. Fans simply cant wait to see what these two brothers have in store in the near future.

The pair have dropped hints left and right about what might actually make it on screen. But this latest tease is perhaps the toughest to decipher yet. The story is only speculative at this point, with no official synopsis released. So who knows what they are making in this video. But all evidence points to this being some kind of important prop. Could it be the Infinity Gauntlet, so named after the comic series many believe this to be an adaptation of?

One constant when it comes to discussing the Infinity War movie is that Thanos is the main character, surrounded by over 60 iconic Marvel superheroes and other characters introduced over the past few years. In all likelyhood, the video you see, which arrives from the duo's Facebook, has something to do with the big, mean purple guy in the space chair. They leave only this taunting clue.

"Infinity prop..."

It's stated that this is footage of a 3D printer at work. One commenter on the video's page points out that it is the Formlabs Form 2 Desktop 3D Printer. That explains the cool green lasers and the amber colored liquid. It is believed that this is a larger printer, and hence, the prop will be quite substantial in size. The prop itself looks to hail from Asgard. Or it could be some sort of intergalactic device whose purpose we're not privy to yet. While some believe this is part of the Infinity Gauntlet itself, other fans are quick to point out that a glove, true to what is seen in the comics, has previously been teased, and this design doesn't quite make sense. Though, other such objects have been retrofitted and changed from the comic book page to the screen.

Whatever this turns out to be, it's cool to see it coming together on set. 3D printers are becoming commonplace in practical effects shops, especially with fans demanding more practice effects and less CGI. If you have any idea what this might be, feel free to sound off. In the meantime, check it out for yourself.