Upgrade your above-ground pool with this Vevor 18' round overlap pool liner designed for 52" wall height steel-sided pools. Made from 16 mil premium vinyl PVC, it is built to help resist wear, tearing, sun exposure, and low temperatures for dependable seasonal use. The snug-fit design helps reduce wrinkles for a cleaner appearance and smoother swimming surface. A matte anti-slip backing helps the liner stay in place, while included leak-proof repair patches add convenience for minor fixes. The boulder swirl pattern gives your pool a finished, attractive look for backyard outdoor spaces.