Keep your pool cover secure this winter with the VEVOR Pool Cover Water Bags. This set includes 5 durable, 8-foot bags designed with a double chamber for added stability. Made from 0.3mm thick PVC, these bags are built to withstand the elements while featuring reflective strips for visibility. The leakproof screw cap ensures no water escapes, providing reliable weight to keep your cover in place. Perfect for inground swimming pools, these water bags are essential for protecting your pool during the colder months. Enjoy peace of mind knowing your pool is well-protected!