The LEGO Harry Potter minifigure keychains are based on the Harry Potter theme licensed from Warner Bros. and based on the book series by J. K. Rowling. The LEGO version of Harry Potter was initially introduced in 2001 and the first keychains were released later in 2004.
Summary
Gear Key Chains / Harry Potter Severus Snape Key Chain set 852980 was released on October 3, 2010, retailing for $5, it has since been retired. New, unopened sets are valued at $13, used ones can be found for $11.
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