PROBLEM TO BE SOLVED: To provide partitions which may be easily connected to and hardly separated from each other with an easy connection operation.SOLUTION: A partition is used for retaining wall, fence etc. The partition comprises a main body part and a leg part. The main body part comprises an insertion piece on one side end part, and a slit part on sidewall extending in forth and back direction along the other side end part. When a plurality of partitions are connected, the insertion piece of a partition is inserted into the slit part of another partition so as to be connected. The partition comprises a lock mechanism regulating mutual movement between the insertion piece and the slit part under connected state.【課題】連結操作が容易でありながら相互に外れにくい仕切体の提供を目的とする。【解決手段】土留め、フェンス等の仕切体であって、仕切体は本体部と脚部とを有し、本体部は一方の側端部に差込片を有し、他方の側端部に沿って前後方向に延在させた側壁にスリット部を有し、複数の仕切体を連結する際に一方の仕切体の差込片を他方の仕切体のスリット部に差込連結するものであり、連結状態にて前記差込片とスリット部との間に相互の移動を規制するロック機構を有することを特徴とする。【選択図】 図1