Kamen Rider Build Bottle Change Rider Series 01 Rabbit Tank Form This is an action figure with movable joints. From "Kamen Rider Build," "Bottle Change Rider Series 01 Kamen Rider Build Rabbit Tank Form" is here! An action figure with full body articulation. Press the button on the waist and pull the right leg half-body towards you to separate it into two half-bodies, allowing you to swap parts with the separately sold Bottle Change Rider series figures.