Complete kit includes 20 water bags and 20 hooks for secure anchoring of pool covers, preventing movement and sagging in windy conditions. Made from heavy-duty, cold- PVC that resists tearing, cracking, and leaking, ensuring durability even in freezing temperatures. Fast and flexible installation allows for easy filling and attachment of bags to pool covers, customizable based on pool size and local wind conditions. Multipurpose use extends beyond pool covers, suitable for , tents, water tanks, and outdoor equipment requiring extra stability. This complete kit is designed to keep your pool cover securely in place, even during harsh weather conditions. -duty PVC construction ensures that the water bags withstand the elements, providing long-lasting performance throughout the winter. Installation is quick and adaptable, allowing you to adjust the number of bags based on your specific needs. Additionally, these versatile bags can be used for outdoor applications, making them a practical choice for seasonal and year-round use. Color: Blue Material: PVC Package Contents: 20*Pool Cover Weights Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.