SHINE Hatsune Miku GT Project Mask Hook: Racing Miku 2021 Ver. 004A mask hook with a cute Racing Miku design! Presenting a new mask hook featuring Racing Miku as designed by En Morikura! This mask hook can be attached to a mask in order to save your ears from pain when wearing a mask. A large mask hook, small mask hook and charm are all included. The 2021 Ver. features character designs on both the large and small hooks as well as a larger charm!