This is a high quality solid blue overlap liner for 24-foot round above ground swimming pools. The pool liner fits mots 48 and 52-inch pools. The liner is made from a high quality durable virgin vinyl. It s Tough and will last you for a long time!Please Note: Overlap Liners The Overlap liner requires coping strips (Sold Separately)Swimline Corp. is a family owned and operated business. Founded in 1971 Swimline has grown to be the largest manufacturer of above ground swimming pool liners in the world. In addition Swimline Corp. is the largest importer of in ground and above ground swimming pool covers and related accessories.