This colorful collectible piece is the UK (and possibly rest of EU too) counterpart to the Sonic 10th Anniversary Collectors Box. It has the same things inside as the USA box did, (coin, booklet, cd) but the exterior here is more of a montage/collage thing with most of the people from Sonic Adventure 2 Battle in it. Here, it's called Birthday Pack, and was (as expected) available for 2 days only (noted at the bottom) If you want to see the USA version, along with what was inside, it is USA Sonic 10th Anniversary Pack. 

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