King Stone

The Kingstone is Kamen Rider BLACK's means of transformation belt embedded upon the center his belt waist called the Stone of the Sun. In order to transform, Kotaro using an arm twisting pose then shouts "Henshin!" causing the Kingstone revealed in a form of red flash. The belt materialize itself with the intensity of several red & white flashes, his body turned into a shade green which utilize his rider form to complete the transformation. Kingstone is also means of charging several energies to perform it's following finishers.