These tennis balls were used at a tennis school. They are St. James brand. 100 balls will be shipped in a cardboard box. Please note that these are used, so some may be slightly deflated or have stains. Great for playing with kids, practicing baseball, or playing with dogs! Used at the school → used in a club for about 1 month. I have more in stock! I can accommodate +100 or +200 more. The price will be x2 or x3, and I'll give a discount for the shipping cost. [Price is not negotiable]