The Volleyball Training Aid Vertical Jump Measurement Tester Portable Physical Testing Scale Jumping Trainer Pole with Water Bag Equipment is an invaluable tool for athletes and coaches. This device provides a reliable and safe method to assess a player's vertical jump capability. Its portability allows for testing on-site or off-field, making it an excellent tool for sports testing in schools or fitness centers. The tester features a sturdy pole with a weighted end to ensure accurate and consistent measurements. The water bag at the base provides an added layer of safety, preventing potential injuries. The Water Bag Equipment is designed for long-term durability and includes a convenient carrying case, ensuring easy transportation and storage. With the Volleyball Training Aid Vertical Jump Measurement Tester Portable Physical Testing Scale Jumping Trainer Pole with Water Bag Equipment, you can accurately measure and monitor your athletes' vertical jump performance, helping them improve and excel in their sport.