Pacific Diamond 48" Above-Ground Unibead Style Liners Beautiful Designer Liner Easily Installs On Both Overlap And Beaded Type Pools! Upgrade Your Overlap Style Liner With A Deluxe Unibead Liner! Unibead Liners Are Easier To Install Then Overlaps And Allow You To Have The Beautiful Designer Border Found Only On Beaded-Type Liners. The Liner'S J- Hook Simply Slips Over The Top Of Your Pool Wall And Hangs Straight And Securely Into Your Pool. Our Unique J-Hook (Unibead) Liner Will Also Fit Pools With Bead Receivers. Unibead Liners Are Constructed Of Top-Quality Vinyl And Loaded With U.V. Inhibitors To Make Them Last For Years And Years. Standard Gauge Unibead Liners Are Backed By A 15-Year Warranty.