I'll get just 1 of each type (wearable, etc) or just 1 item? Thanks you~

Monthly collections will give you just one item of your choice.

I can choose the item that I want or it's random?

From any monthly collection from 2011 and 2012, you can choose the one item you want. From monthly collections 2010 and earlier, it is random.

Oooh, awesome! Thanks you!

[item2=january 2009 collection] "collection" in the item name = you pick one

[item2=December 2008 Donation Present] "donation present" = random