This 12-piece set of high elasticity tennis balls is designed for professional training, outdoor games, and safe play with dogs. Measuring 63mm, the balls are durable and resilient, able to withstand bites, chomp, and repeated impact while maintaining consistent bounce. Perfect for tennis practice, recreational matches, and interactive dog play, these balls provide versatility and long-lasting performance. Ideal for athletes, coaches, and pet owners alike, this set combines fun, durability, and high-quality design for multiple uses.