This is an injection-plastic aircraft model kit.
From the Hasegawa website:
Fans of Leiji Matsumoto's mangas and anime films are aware of his affinity for World War II aircraft. Nowhere is this more apparent than in Matsumoto's "The Cockpit," which features several WWII aircraft, including the Ki-84. His enthusiasm for WWII isn't limited to the printed page - "The Cockpit" was adapted into an anime in 1993. This limited edition kit features one marking option based on Leiji Matsumoto's battlefield manga "Acrylic Coffin," which appeared in "The Cockpit."
Parts come molded in gray. Includes clear parts and decals.
When completed, this model measures about 207mm long and has a wing span of about 234mm.