As the name implies, the Inner Forearm Twist Block: * Uses the Inner Forearm as the striking surface * Is an example of a Twist Block, meaning the torso twists in the direction of the block. The block is performed as an Outward Block. A more complete name might be Inner Forearm Twisting Outer Block. The Inner Forearm Twist Block appears, for example, in the form Cheonkwon.