PROBLEM TO BE SOLVED: To provide an interdental cleaning tool that can clean both a contact part and a lower part and that can also deal with width and narrowness of an interdental cavity.SOLUTION: The interdental cleaning tool includes: a floss-like long part 10 and brush parts 20 which are provided on the long part with prescribed spaces apart and which have a larger cross section than the long part. Among the brush parts, there are first brush parts 21 that have the smallest cross section and second brush parts 22, etc., that have a larger cross section than the frist brush parts. The interdental cleaning tool 1 comprising the floss and the brush parts is stored in a take-up container A.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2016,JPO&INPIT【課題】コンタクト部及びコンタクト下部両部の清掃ができ、かつ、歯間空隙の広狭にも対応することが可能な歯間清掃具を提供すること。【解決手段】糸形状の長尺部10と前記長尺部上に所定の距離を隔てつつ設ける前記長尺部よりも断面積が大きいブラシ部20とから構成する歯間清掃具であって、前記ブラシ部中最も断面積の小さい第一ブラシ部21と、前記第一ブラシ部に隣接し、前記第一ブラシ部の断面積よりも大きい断面積を有する第二ブラシ部22等を備え、巻き取り容器Aに収納した容器収納歯間清掃具1を提供する。【選択図】図4