A floss and floss device thereof, the floss consist of a first silk thread and a second silk thread that have different diameter. The floss device includes a frame component and at least one silk thread module. The frame component has two arm portion install a fixing portion respectively. The silk thread module consist of a first silk thread and a second silk thread, the first silk thread and the second silk thread is closely installed in the fixing portion of the frame component. Forming a diameter err portion between the first silk thread and the second silk thread by the difference in diameter between the first silk thread and the second silk thread.一種牙線及牙線裝置,該牙線係由不同直徑之第一絲線與第二絲線撚製而成。該牙線裝置包含:一框架構件,具有二形成相間隔之二臂部,該二臂部各設有一定位部;及至少一絲線組,係由一第一絲線與一第二絲線成相鄰設置之被固定在框架構件之二定位部,該第一絲線與第二絲線係形成不同直徑,使該第一絲線與第二絲線形成有至少一徑差部。1...框架構件11...臂部12...臂部13...定位部2...絲線組21...第一絲線22...第二絲線
