LEGO Bionicle Mata Nui Bohrok of Stone 8560: Pahrak (complete with Krana) 673419015561 | eBay
Rarity level 8/10❗️Authentic LEGO Bionicle exclusive White metal Krana Kal promo piece, also called WMKK. They're almost impossible to find these days and only 5000 have been produced + around 100 spares! :
Battle for Le-Koro - BIONICLEsector01
LEGO part 42042Xa - Blue Bionicle Krana Mask Xa at BrickScout