Description: 【Precision Measurement】: This Vertical Jump Tester provides an accurate display of reach height, ensures more scientific training and precise testing of jumping ability 【Adjustable Height】: Jump Training Tool featuring a three section steel tube structure, allows for easy height adjustments, meet different needs 【with Bell】: The anti tangles spring design prevents wrapping issues during use. A golden bell provides a clear sound each time the target is reached, offering immediate feedback on successful jumps 【Stable Weighted Base】: Jumping Equipment With an approximately 3KG weighted base, this equipment offers enhanced stability and is resistant to tipping over. It can be used confidently on various indoor and outdoor surfaces 【Jumping Training Tool】: Jumping Measurement Tool Ideal for improving power, balance, ankle stability, and lower limb muscle strength, this versatile tool serves as a great choice for physical fitness tests, jump training sessions, and sports exams across multiple scenarios Specification: Material: Stainless steel Size Chart: Optional: 130cm to 330cm: 330 cm x 75 cm/129.92 inch x 29.53 inch or 125cm to 240cm: 240 cm x 75 cm/94.49 inch x 29.53 inch Package Includes: 1x Vertical Jump Tester (The base and stem are separate) Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.