This is a listing for Blitzball, which is not released in Japan. This is a popular baseball training ball in America, and it allows you to throw curveballs that cannot be replicated with regular balls. It is a trending training item on YouTube and social media. [Product Contents] ・Blitzball x 2 Color: Yellow The balls will be sealed in a zip bag and shipped via Yu-Packet Plus. [Condition] Unused. As this is an overseas product, there may be minor scuffs from manufacturing. [Features] ・Ideal for curveball training ・Control practice ・Pitching practice ・Baseball training equipment This is a rare item with limited distribution in Japan. Immediate purchase is OK.