【Product Contents】 4cc of plasticizer, enough for one bowling ball Bowling ball restoration manual Bonus item worth 60 yen (7.2-7.5cm sponge polishing pad) Available for 360 yen without the bonus. -------------------- ⭕️The Principle of a Dead Ball⭕️ ① A bowling ball has countless invisible pores, like a sponge. Oil enters these pores, reducing the coefficient of friction. ② Furthermore, as the ball is used repeatedly, the numerous pores on the ball's surface collapse. These two factors combine to drastically reduce friction, causing the ball to lose its hook. -------------------- ⭕️About Bowling Ball Restoration by Injecting "Plasticizer"⭕️ Purpose: This is a maintenance technique to restore the performance of a bowling ball that has become saturated with oil and hardened on the surface (plasticizer has been lost) by directly replenishing the plasticizer. Effect: It is said that the ball's surface regains tackiness (grip), improving hook, backend reaction, and pin action. Target: Effective for balls that have become dry and rough after repeated oil extractions. (Plasticizer Application Method) Oil Extraction: Perform oil extraction beforehand, and applying the plasticizer while the ball is warm will yield even better results. Surface Treatment: Apply after surface processing with Abralon, etc. Application: Apply 4cc evenly to one ball. Penetration: Allow the components to penetrate the ball after application. 【Procedure】 ① Forcefully remove the oil that has entered the invisible pores through high-temperature treatment. (Use 60°C and boiling water) ② Grind the surface of the oil-extracted ball with Abralon, etc. Restore the collapsed parts of the ball to the same condition as new. ③ Introduce the lost plasticizer into the countless invisible pores. This is done simply by applying it to the surface, and it will be absorbed automatically. (4cc) Usual working time: Approximately 90 minutes. The ball will be completely restored to like-new condition. Balls that have absorbed too much oil may require multiple oil extractions. ⭕️My manual contains a secret oil extraction method. The oil deep inside the ball will absolutely not come out with commonly known oil extraction methods!! ⭕️Plasticizer can be handled with bare hands (Wearing vinyl gloves is recommended for those with sensitive skin) -------------------- Approximate delivery time after shipment (Using Japan Post, delivered to the mailbox) Kanto: 1-3 days Honshu: 2-4 days Kyushu/Hokkaido/Remote Islands: 3-5 days Okinawa: 4-7 days