4636204 LEGO Ninjago Promotion is a Ninjago: Masters of Spinjitzu - pilot episodes set that contains a sword holder and a golden katana. A special Ninjago printed piece was included in this set.
It was available in December 2010 in Toys 'R' Us as a Ninjago Promotion. It was given away for free.
Trivia
- This is the second Ninjago set to be released, after 4617163 Ninjago Eyes Sticker. However, it is the first one to contain LEGO pieces.
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