Thank you very much for your many follows and repeat purchases. In the unlikely event that you are not satisfied, we will offer a refund or exchange within 30 days of product arrival, even if it is due to your convenience. We would be grateful if you could purchase with peace of mind. As these sell out immediately, we are unable to offer discounts. We appreciate your understanding. As an introductory offer, we are providing an additional service of balls. We also have repeat customer benefits. Please take advantage of this opportunity. These are balls that were opened in early January and used for 3 days in women's practice on a hard court. While the images show balls with relatively clean felt, some balls may have slightly scuffed felt. The air pressure may have decreased slightly, but they are recommended for partner practice, serve practice, and ball-feeding drills using many balls. We believe they can be widely used by children, women, and adults, as well as by beginners and intermediate players. We will respond promptly even if you purchase immediately. We have approximately 200 balls in stock. If you purchase a large quantity, we will offer a significant discount, so please contact us before purchasing ♪