This is a posable action figure from the Figuarts series.
This super-posable figure of Kamen Rider 1 is highly detailed and includes multiple hands, as shown here. The figure stands about 15cm tall.
Please note that the photos shown are of a prototype; the production version may vary. Also, figures such as this are mass produced and as a result some inconsistencies in finish and painting may occur; these are not considered manufacturer's defects. If you absolutely must have perfection, prepare to do some touch-up work on your own.