About the product: ・This is a ball with a handwritten autograph by Ai Kurogo, a key player for the Toray Arrows in the V. League. Ai Kurogo No. 13 This ball likely has scratches and air pressure checks from being used in a match, giving it a sense of realism. ・Ai Kurogo has left the Toray Arrows this season and transferred to the Saitama Ageo Medics. This is a signed ball from the time when she was a key player for the All-Japan Women's Volleyball Team before the Tokyo Olympics, wearing the number 13. ・I purchased this on another site, but I am selling it to organize my collection. ・This is not a mini ball for autographs, but rather a MVA200, a top-of-the-line Mikasa official ball, has been signed. The ball itself is quite expensive. I believe this is a very rare signed ball. ・This time, I will also include a Molten clear case for a size 5 ball (model number: CC50N) so you can display it at home or in your shop. ・I will ship it in a 100-size cardboard box as shown in the 10th image, without deflating the ball. Please refrain from purchasing if you are overly concerned about minor details. Type: Volleyball (Size 5 / for general, university, and high school use)