【Vertical Jump Tester】: Featuring a telescopic design, measuring range of 1.7-3.6m/5.6ft-11.8ft, it can measure vertical jump height with an accuracy of up to 1cm. This makes it a practical tool for athletes of all performance levels. 【Effective Training】: Helps coaches improve athletes' jumping techniques, increase vertical jumps, and thus enhance peak performance. Makes it an ideal tool for volleyball/basketball training. 【Instant Rope Reset】: Utilizes innovative instant rope reset technology, ensuring smooth, uninterrupted operation by pulling the rope back to its original position immediately after the test. Seamless transitions between jumps enhance training efficiency. 【Versatile Applications】: The vertical jump measuring device can be placed outdoors, at home, in schools, gyms, and sports centers for basketball, volleyball, and related jumping training activities, suitable for enthusiasts of various jumping sports. 【Durable and Reliable】: Manufactured with alloy materials and processes, it can withstand frequent use and various environmental conditions, ensuring long-term stable operation and reducing maintenance and replacement costs.