The Heavy Spinning Sword DenKamen Sword (重回転剣デンカメンソード Jūkaitenken DenKamen Sōdo) is Kamen Rider Den-O Liner Form's weapon in the shape of a broadsword with a blade in the shape of a clock hand, created by the Taros for Ryotaro thanks to Ryutaros' drawing, serving as a means of communication from the Den-Liner. Once the Rider Pass is inserted into the blade, Den-O assumes Liner Form to use the sword's full power. The four Tarōs are then (humorously) united at a single point.