Keep your pool cover secure this winter with the VEVOR Pool Cover Water Bags. This pack includes 5 durable, 8 ft bags designed with a double chamber for added stability. Made from 0.3mm thick PVC, these bags are built to withstand the elements, featuring leakproof screw caps to prevent any water loss. The reflective strips enhance visibility, ensuring safety around your pool area. Perfect for inground swimming pool covers, these water bags provide the weight needed to keep your cover in place, protecting your pool from debris and harsh weather conditions. Enjoy peace of mind this winter!