The Transformation Belt Decadriver (変身ベルト ディケイドライバー, Henshin Beruto Dikeidoraibā) is a belt that gives Tsukasa Kadoya the ability to become Kamen Rider Decade, based around the Rider Cards. It was created alongside the Ride Booker, as well as Diend's Diendriver, by scientists of Dai-Shocker, which included Joji Yuki. Decade returns in Kamen Rider Zi-O with an upgraded version of the Decadriver called the Transformation Belt NeoDecadriver (変身ベルト ネオディケイドライバー, Henshin Beruto NeoDikeidoraibā), whi
