Enhance Hitting Power: The tennis serve training tool is uniquely designed to provide added resistance when striking the ball, helping players generate more force and gradually improve their hitting power. Improve Accuracy: Using this tennis training tool encourages players to focus on contact point and ball angle, supporting better accuracy and control over shots. Versatile Use: In addition to hitting practice, this tennis training aid can be used for arm, wrist, and shoulder strength exercises, as well as flexibility training. Premium Material: Made from silicone material, the tennis training tool offers high flexibility, is easy to handle, and built to last for long-term use. Package Includes: 1 Tennis Training Tool. A great gift option for family and friends on birthdays, holidays, or special occasions. Specifications: Material: Silicone Size: 1 Ball: 58 cm / 22.83 inches Package Includes: 1 Tennis Training Tool Note: Please allow slight measurement variations of 12 cm (0.390.79 inches) due to manual measurement.