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851814 The Joker Key Chain is a 1 piece Batman Key Chain released in 2007. It features The Joker minifigure attached to a key chain, as well as The LEGO logo printed on a white 2x2 tile. The minifigure parts can move, but can not come apart, because a special glue is used.
- On LEGOshop.com, it was titled "Keyring".