This structural kit is used to construct a structure that drops a ball by combining multiple parts, and provides a structural kit that makes it possible to construct a structure that is attractive because of the unexpectedness of the ball's movement in the structure, and that can be realized with a simple structure. [Solution] A structure for moving a ball 9 horizontally and vertically, comprising a plurality of parts 211, 212, 213, 214 that extend horizontally and widen from one end to the other, with holes 31 formed therein for moving the ball horizontally, and a guide member 81 that supports the plurality of parts 211, 212, 213, 214 and is used to guide the movement of the ball 9 between the plurality of parts 211, 212, 213, 214. At the other end of the holes in the parts 211, 212, 213, 214, drop holes 313 are formed to drop the ball down to the part 211, 212, 213, 214.