1.DURABLE THICKENED PVC MESH: The jump box features tearresistant, deformresistant PVC clipped mesh that offers grip for workouts. Its nonslip surface ensures safety and longevity, while the waterproof and antifouling finish makes it easy to clean. The removable outer skin with a zipper allows for convenient maintenance. 2.DENSITY PEARL FOAM FILLING: Our jump box is packed with density EPE foam that minimizes deformation over time, providing moderate elasticity and durability. Environmentally friendly and odorless, this filling is for home, school, and gym use, supporting repeated workouts without wear. 3.VERSATILE STACKABLE DESIGN: The unique design of our jump box allows for individual use of each level or stacking them together for various heights. With four height options, this multifunctional gym box adapts to different fitness levels, making it suitable for both beginners and advanced athletes. Its stackable nature also promotes spacesaving storage. 4.ENHANCED SAFETY AND STABILITY: Each layer of the jump box features a longer, wider Velcro for reliable adhesion, ensuring it stays securely in place during workouts. The friction surface, combined with a weighted structure, provides a solid, stable platform that minimizes the risk of shifting or collapsing, prioritizing user safety.