Enhanced Stability The bottom area of the boxing column has been upgraded and enlarged to provide stability and full resilience after adding ballast materials. This design helps the column stay steady during heavy punches and rapid movements. LeakProof Fill Port The wide bottom fill port is leakproof, allowing easy filling with water, rice, fine sand, or other ballast materials. This enables you to weight and stability to match your training needs without leaks or mess. Safe and EcoFriendly Material Constructed with safe and environmentally friendly PVC, the boxing column has a smooth surface that is gentle on the skin. The material provides a comfortable feel during contact and is easy to clean. DoubleLayer Air Nozzle The air nozzle features a doublelayer design made of quality soft rubber, ensuring a reliable seal and slow air leakage. This helps maintain stable inflation and consistent performance over time. Use Scenarios Home gym training: Adjust ballast to achieve the desired stability for punching drills, combinations, and speed work in a compact space. Boxing club or training studio: Durable design supports frequent use by multiple athletes, providing a consistent practice platform. Skill development and conditioning: Ideal for practicing form, rhythm, and accuracy with a stable punching surface that responds predictably to impact. Specifications at a glance Material: PVC (safe and environmentally friendly) Fill options: Water, rice, fine sand, or other ballast materials Fill port: Wide bottom fill port with leakproof design Air system: Doublelayer soft rubber air nozzle for tight seal and controlled leakage Performance: Enhanced base stability, reliable inflation, and longterm durability