How can you tell if badminton rackets are fake?

<strong><i>Question by Batman</i>: How can you tell if badminton rackets are fake?</strong>
I know this is tennis (no badminton section), but how would you tell if a racket is fake?
i planned on ordering online
http://www.aliexpress.com/item/Free-shipping-2-pieces-lot-top-quality-badminton-racket-racquet-nanospeed-9900/607020523.html

but IDK if it is real or not, all the other Yonex Nanospeed 9900 i saw were orange, so i was unsure


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