Is the Hisoka Morow plush officially licensed merchandise?

Yes, it is officially licensed merchandise by Great Eastern Entertainment.

What are the dimensions of the Great Eastern Hunter x Hunter Hisoka Morow plush?

The plush measures approximately 10.5 inches tall, 5 inches wide, and 3.5 inches long.

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Great Eastern Hunter x Hunter Hisoka Morow 8 Inch Plush Officially Licensed Anime Collectible

Great Eastern Entertainment Hunter x Hunter Hisoka Morow plush; approximately 10.5 inches tall, 5 inches wide, and 3.5 inches long - officially licensed HxH collectible
High quality, cute, and collectible plush featuring Hisoka Morow, the enigmatic and powerful magician from the beloved Hunter x Hunter anime series
Has string attached for easy display and comes with tag containing official licensing information; limited availability collector's item
Collect all your favorite Hunter x Hunter characters - Hisoka joins Kurapika, Illumi, and the full HxH cast in this Great Eastern plush series
Makes the perfect gift or accessory for any anime fan; officially licensed merchandise by Great Eastern Entertainment