A flossing tool comprises a handle body and a rotor. The rotor is sliding longitudinally in a framework of the handle body. Floss is threaded through the eyelets of the handle body and wound on two reels of the rotor in opposite circumferential directions. Turning the rotor to desired direction will advance the floss. Pulling the rotor with the thumb or forefinger of a single hand will stretch the floss.一種牙線器包括一握柄桿體及一轉子。轉子在握柄桿體之框架中縱向滑動。牙線穿過握柄桿體的孔眼並以相反圓周方向捲繞在轉子之二個捲線盤上。按所需方向旋轉轉子可前移換線,以一單手的拇指或食指扣拉轉子可拉撐牙線。(1)‧‧‧握柄桿體(2)‧‧‧轉子(24)‧‧‧牙線
