Robust 500D PVC Material: Made from high-quality 500D PVC fabric, waterproof and tear-resistant, it guarantees optimal protection against wind and weather, keeping your tent or gazebo stable and secure even in strong winds. 10 Liters of Stabilization and Space Saving: With a filling volume of up to 10 liters per bag for maximum stability, simply fold it up after use and store it in your car or tent to save space—perfect for camping and outdoor adventures. The extra-large opening allows for quick filling with water or sand in seconds. Reduces spills and simplifies handling, ideal for stress-free setup! Practical Design with Handle and Strap System: Ergonomic handle and easy-to-handle spiral cap for comfortable carrying and filling. Reinforced tie-down straps included (suitable for tent poles up to 7 inches). (cm in diameter) - securely fastens your structure. Universal use: perfectly suited for pop-up tents, awnings, gazebos, camping tents, and car roofs. The ideal all-in-one solution