"Golf Core Revolution: Your Swing Will Amazingly Transform!" Koutaro Seki Will be packaged with waterproof protection and shipped promptly. This is a used item, so please prioritize the current condition if there are any oversights. Please refrain from purchasing if you are concerned about minor details. Instant purchase welcome, no comment needed. * Please refrain from price negotiations. I will block you. * For [Convenience store/ATM payments], please purchase **immediately before** making the payment. (There have been many instances of people not paying in the past.) * Those requesting combined purchases, please purchase promptly after approval. (I am repackaging and waiting for shipment.) #KoutaroSeki #Koutaro_Seki #Book #Lifestyle/Sports & Physical Education