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[edit] Morote-tori
Two hands holding one hand.
Also called ryote-mochi or "katatedori ryotemochi" (grabbing one hand by holding with two hands).
This is done with both hands of the uke grabbing between the wrist and the elbow of the nage with the thumbs pointing in opposite directions and advancing the same foot that the hand that is near the elbow, similar (some sensei say that is the same) to grabbing a bokken.
In kotai, usually aihanmi, nage offers one hand high, and uke grabs it with one hand near the wrist, and lowers it at the same time that changes hanmi to gyaku, and grabs with the other hand below the elbow. Nage must maintain his/her arm with muscular tone, so the uke can not make the joint lock.