Excelsior

The Excelsior Extreme 9 logo

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Excelsior is a razor brand advertised in Grand Theft Auto IV on Weazel, the radio, and around Liberty City. The ads parody Gillette. The Extreme 9 is named so because its heads have 9 blades. According to some posters around 24/7, they sell a pack of two heads for $18.

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  The Excelsior structure in Star Junction.
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  An Excelsior Extreme 9 advert.