This is a strap, keyholder, or charm.
Cute li'l figure on a keychain stands about 6cm 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.