This is the Aperture Science and Laboratories Weighted Companion Cube (you can just call it a Companion Cube) this object originates from Portal 1, but it has made many other occurrences in others such as Portal 2 and even Lego dimensions. This object is very iconic to the Portal and Valve universe and many people love it. I built this to allow being more creative thoughts of Portal, and also try to get a Lego set that is Portal related on the shelves! This would make for a great product, because if someone got it, it could be from nostalgia or just liking Valve, it could also be a very nice collectable in both Portal and Lego collections! I Just hope this gets far in Lego and lets the spirit of Aperture stay alive.