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The MCC+ is a Master Curvy Copter that has been subjected to one level of unbandaging. See more info about it here: http://twistypuzzles.com/forum/viewtopic.php?f=15&t=26151
This is the flat version of the puzzle. I also offer a pillowed version here: http://shpws.me/wgJz
You will need 12 screws of size M3 at least 15mm long to assemble this puzzle.