Leak-Proof & Durable: Made with high-quality PVC material, a leak-proof valve, and a sturdy handle design, each aqua bag meets strict standards. It ensures no air or water leakage, providing long-lasting performance for your workouts Versatile Training Tool: This water weight bags dynamic fluidity makes it ideal for aerobic exercises, muscle training, balance work, and interval training. It improves balance, enhances athletic reaction, and diversifies your fitness routine Adjustable Weight: The adjustable aqua bag can hold up to 70 lbs of water, allowing you to modify the water level to achieve a suitable weight for your training goals, ensuring optimal workout results Convenient to Use: Featuring a press-to-fill water system, the large aqua bag for workout minimizes the risk of leakage and provides easy use. When not in use, it can be folded for compact storage, making it portable and easy to store