Blue Belt Locks You must first complete Introduction to throws before viewing this Lesson We first look how we can apply the basic locks and some variations against the following grabs: Double wrist grabBoth hands wrist grab You also learn four leg locks Forearm sawKnife edge sawDouble shinInside knee push Lesson tags: blue belt, locks Green Belt Throws Blue Belt Throws Back to: 02. Chongmukwan Intermediate > Locks and throws