Easy Installation: Designed with a strong wall-mounted suction cup and powerful double-sided foam adhesive, the vertical jump tester is easy to install on multiple surfaces such as glass, tiles, boards, or walls. This versatility allows for use in a wide range of settings, accommodating different environments and ensuring convenience. Durable Material and Reset Mechanism: Constructed from sturdy ABS material, the vertical jump tester is built to withstand regular use without being easily damaged. The design includes a reset lever on the markers, allowing for quick and convenient resetting after each jump, ensuring accurate measurements. Enhance Training and Foster Resilience: The vertical jump tester is a valuable tool for helping children improve their vertical jump, enhancing their physical agility, and motivating them to challenge themselves. It aids in physical training and supports the development of perseverance and a desire for self-improvement. Convenient Measurement and Adjustable Height: With a length of 25cm, the vertical jump tester features corresponding markers for each centimeter, making it easy to measure vertical jumps accurately. Additionally, the installation height is adjustable, catering to children of various age groups and ensuring suitability for different skill levels. Child-Friendly Design: Featuring a cute and appealing duck shape, the vertical jump tester is suitable for younger children (above three years old). Its attractive design makes it ideal for home use, as well as in kindergarten or elementary school playgrounds, adding an element of fun to physical activities. Color: As Shown Material: ABS Package Contents: 1 x Vertical Jump Tester Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.