This creation is a kind of structural improvement of cotton rod, espespecially the barred body center system of double end cotton rod is consolidated with jacket layer and extends outward, enable jacket layer cladding cotton capitiform at protection, the end cotton head is used in order to Hou can be folded to center in jacket layer, and another end cotton head person can be continued to use with anti-fouling retracting jacket layer using Hou.本創作係一種棉花棒之結構改良，尤指雙頭棉花棒的棒體中央係固結有外套層而向外端延伸出，令外套層包覆棉花頭形成防護，俾可在外套層向中央收合後而使用該端棉花頭，並在使用後拉回外套層以防污損而可繼續使用另端棉花頭者。
