The cast worn by New Zealand Prime Minister John Key after he broke his arm has been sold at auction for more than $9,300, a company says.

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The New Zealand Web site TradeMe, which was behind the charity auction, said Key's cast sold for $9,362 and was the focus of more than 180 auction questions, CNN reported Sunday.

Proceeds from the sale will help blindness prevention programs through the Fred Hollows Foundation.

Key broke his arm Jan. 17 during a Chinese New Year celebration in Auckland.

The cast was signed by several international dignitaries, including Australian Prime Minister Kevin Rudd, during a Pacific Islands Forum meeting.

The questions posed to TradeMe regarding the unusual item varied in their focus, CNN reported.

"If I was successful with this auction do I also have ownership and rights to any genetic material that may (have been) left inside the cast and the right to clone it if I choose to?" one unidentified person asked.