Wilson k Factor k Tour kei nishikori Japan only model. This racket is in new condition with plastic wrap on handle. A very limited racket and Kei"s actual spec only sold in the Japan market. This racket is missing shrink wrap grip slightly damaged from storage age4 1/495 sq in16 x 20Even balance313 grams 11 ozA very hard to find racket plays great. Let me know if any questions. I am a highly rated eBay seller please see my reviews thanks