This above ground pool liner is designed to be used as either a standard beaded or J-Hook liner. This uni-bead above ground pool liners are made to last long. Whether it's design, pattern or fit, these quality liners are unbeatable. They are assured of keeping your above ground pool in touch with the latest style. Features Helps to keep the decorative tile graphics straight and uniform Design has a blue and gold triple helix twist near the top with a swirling blue pattern below Extra heavy duty virgin vinyl is fade resistant and uses UV protected printing inks Lamiclear acrylic top coat provides years of protection against chemicals and abrasion Resists sunlight, bacteria, and fungus Fits flat bottom above ground pools with 52 sidewalls Each liner is computer cut and welded for a flawless fit and finish Made in the USA Comes with a 25-year manufacturers warranty Includes a Warning No Diving! Shallow Water, you can be paralyzed! safety sticker Dimensions 18' long Material vinyl