Pool equipped with patented FrameLink System - custom-molded T-connectors provide consistent frame connections, prevent metal-on-metal corrosion. The round shape design provides easy installation, enhanced stability and less wasted space as the pool doesnt require lateral support. he sturdy pool sidewalls are constructed with Tritech, a 3-layer reinforced material with a polyester mesh core and two layers of high gauge PVC for superior strength and durability