The top strip is made of high-quality plastic with excellent corrosion and aging resistance. It withstands long-term exposure to humidity and water around the pool without rusting, rotting, or deforming, and is reliably designed to withstand the unique operating conditions of a pool. As a dedicated installation aid for overlapping pool liners, it securely fastens the pool liner to the pool wall before reinstalling the top railing. This prevents the liner from shifting or wrinkling, ensuring a tight fit and minimizing leaks and bulging caused by improper installation. Replacing the top strip is a critical step whenever replacing an overlapping pool liner. The old strip is prone to wear, deformation, and aging over time, making it less effective in securing the new liner. This can cause the edges of the liner to fray and tear, increasing the risk of damage to the new liner. The top strip is available in black, gray, and white (colors are randomly assigned based on availability), adapting to the and color of -ground pools. After installation, the color will not disrupt the overall visual harmony of the pool. Designed specifically for overlapping -ground pool liners, its dimensions and structure precisely match the specifications of mainstream overlapping pools, eliminating the need to worry about installation failures due to model mismatches. A single top strip offers low cost, yet effectively protects the more valuable pool liner, preventing losses over time.