Mizuno Red Mark Tennis Sponge Balls - 30 balls + 5 bonus balls, for a total of 35 balls. The bonus balls may have some scuffing, but are generally in good condition. Will be shipped in a recycled cardboard box. Since Mizuno balls currently sell for 1,100 yen for 2 balls, 30 balls would be equivalent to 16,500 yen. These are popular, so they sell quickly. We recommend purchasing soon after liking the item! These sponge balls are lightweight and easy to handle, making them suitable for baseball toss batting practice, toss tennis with children, and throwing practice! Some facilities also use them for grip strength training. Used for tennis in a gymnasium for about 4 hours. There may be some scuffing from the strings, and the degree of deterioration varies depending on the ball, so there may be differences in the strength of the bounce. Please understand that these are used items and there will be differences from new ones before purchasing.