1. HEIGHT ADJUSTABLE FLEXIBILITY With an adjustable height from 120cm to 160cm, our punching ball provides an adaptable solution for all coaches and fitness enthusiasts. Whether professional boxer or beginner, the adjustable height allows individual and targeted training. 2. DURABLE PVC FULL FOAM BALL Our punching ball is equipped with a sturdy, insertforming PVC full foam ball, which ensures a long life and excellent ageing protection. It is tough and can survive the toughest training sessions. 3. Exquisite steel spring construction Exquisite steel spring on the link provides excellent elasticity and quick relaxation. It is resistant to rust, breakage and deformation, which ensures the longevity and reliability of the product. 4. Innovative shovel base design The design of the shovel base, along with the recommended sand for PVC plastic production, provides improved stability and quieter operation. Our punching ball is easy to install and provides a firm base for intense training sessions.