Heavy-Duty In-Ground Swimming Pool Cover Weights - 20 Pack - Secure & Protect Your Pool Cover - Perfect for Winter Storage & Wind Protection

An attractive way to keep your pool's winter cover in place all season long. The hard plastic construction offers a more durable solution when compared to vinyl water bags, which may rupture or leak. They are easy to use. Simply place the blocks around the edge of your pool cover, fill with water from your garden hose and snap on the top lid. In the spring, simply remove the lid and tip the blocks over to drain.