Duncan® Wiz-z-zers® are a set of 12 battling tops. There are three collectible themes, including BioBugs, BioNinjas and BioSaurus. You can battle Ninjas, Dinos and Bugs for World supremacy.  Wiz-z-zer revs up to 10,000 rpms. Each Wiz-z-zer comes with a base, trick stands, battle belt and battle trick book.
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