The chroma 2 case was released as a part of a game update for CSGO on 15th of April, 2015. The weapon case contains 15 skins designed by the CSGO community, as well as a chance for the players to get one of the 5 possible knife skins in the special rare slot, with 12 different possible finishes each.
To open the chroma 2 case you must first get the chroma 2 key. You can buy it in the game store or trade for it with other players.
When you open the case added in this update, you get a chance to receive the following skins:
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