I know it's in Japanese, but you can always use Bablefish:

http://search1.auctions.yahoo.co.jp/jp/search/auc?p=nsr250+%A5%D5%A5%A9%A1%BC%A5%AF&auccat=2084016487&alocale=0jp&acc=jp

I'd go for these if I were you:
http://page.auctions.yahoo.co.jp/jp/auction/70128515

Julian.