The invention relates to a floss rod which can adjust the thickness and tightness of the cleaning thread body, including a body and a cleaning thread body, the body has a handle and a fixed base, one side of the handle is longitudinally provided with a plurality of hook parts, the fixed base is longitudinally extended with a first fixed rod and a second fixed rod, and the second fixed rod is provided with a connecting groove； the cleaning thread system It is made of elastic material, one end of which is fixed to the first fixing rod, the other end of which can pass through the connecting groove and be hooked to any hook part.Because the cleaning thread body is flexible and can be stretched to change its thickness and tightness, the user can adjust the thickness and tightness of the cleaning thread body according to the width of his teeth seam, so as to facilitate the cleaning of the mouth.本創作係一種能調整清潔線體粗細及鬆緊程度之牙線棒，包括一本體及一清潔線體，該本體具有一握柄及一固定座，該握柄之一側沿縱向設有複數個勾掛部，該固定座則沿縱向延伸設有一第一固定桿及一第二固定桿，且該第二固定桿上設有一連通槽；該清潔線體係由彈性材料製成，其一端固定於該第一固定桿，其另一端則能穿過該連通槽，被勾掛至任一勾掛部上。由於該清潔線體具有伸縮彈性，能被拉長而改變其粗細及鬆緊程度，故，使用者能根據自身牙縫的寬窄，調整清潔線體之粗細及鬆緊程度，以利於清潔口腔。
