A "Loot Box" is a monthly subscription 'gamble' where a company sends you a box of mystery items that share a theme every month. Loot Crate has many different boxes and the "Loot Anime" is one of them. Loot anime, naturally, has anime & game themed items in their mystery box for you each month. It's a 'gamble' because you might not like all the stuff, or it could be something really cool, like this Shadow display figure. It's a full color figure, posed just like the stock art & even includes the yellow ring-like 'background'. His name is in Japanese on the disk shaped base.
It's a nice looking figure, but it doesn't have any data on how big it is. The box looks good as well, nicely designed with different Shadow art there in the background. If you didn't sign up for the box, you may be able to get the figure on ebay because (of course) not everyone who bought into the box scheme is a Sonic fan.
(TODO: Is in Hedgy's collection, we can find out how big it is!)