General description These hanging bags are designed to securely fix the pool cover, preventing it from being blown away. The sturdy buckle design makes installation easier and reduces looseness, ensuring that the pool cover remains flat. Technical specifications Material: Thick PVC Features: Antifreeze, tear-resistant, wear-resistant Quantity: 8 bags Usage Fill the bags with water or sand for stability. Fill 1/2 or 3/4 above the ground to prevent cracking due to winter freezing and expansion. Suitable for most garden hoses and faucets for quick filling and drainage. Other information The sealing edges and leakproof valve design prevent leakage while being easy to open and close. Wide applicability for swimming pools of various sizes and shapes.