This is Mikasa's practice ball! It's been used a lot, but its performance as a ball hasn't diminished. The outer layer is peeling, but there are no issues like air leakage. Please check the images for the product condition! There are peeling and scratches, so please check the photos carefully before purchasing. Since the product is as shown in the images and description, we cannot accept returns for reasons such as "it was different from what I expected"...! We will ship it deflated! Please inflate it before use. Practice ball... A practice ball is a ball with the same mechanism as a match ball, but slightly outside the standard values. There may be subtle deviations in the trajectory, so balls with errors compared to match balls made using the same manufacturing process are called practice balls. Basically, there is almost no difference, so it is perfectly usable for use in circles, etc., rather than official matches. Instant purchase available!