Some wooden haniwa originally came from the Kibi region have been discovered, which is called Komon Enban (arc patterned disc) from their patterns created by the combination of linear and curved lines.
吉備地方にルーツを持つとされる直線と曲線を組合わせて文様を施した弧文円板（こもねんばん）と呼ばれる木の埴輪。