New Wheatley Laboratories poster, now in a 24x18 inch size. Fits on any dorm wall or door.
Etsy shop before the holiday sale ends here: [link]
The posters are based off of assets from Portal and Portal 2, owned by Valve. This is a fan work, for fans, by a fan, for the love of the Portal games. There weren't posters out there like this, so the creator made their own and it turns out other people wanted one too.