Corrosion resistant metal frames. Easy to dissemble when preparing for off-season storage. Heavy-duty PVC and polyester 3-ply side walls. 3-ply band provides additional wall support. Printed mosaic inner liner on the sides and bottom of the pool. Built-in flow control drain valve connects to garden hose (with included adapter) to easily drain away water. The round shape of the pool provides for easy installation, enhanced stability, and less wasted space due to the fact that the pool doesn’t require lateral support. Pool equipped with patented Frame Link System- custom-molded T-connectors provide consistent frame connections, prevent metal-on-metal corrosion and have utility add-ons such as cup holders, entertainment trays, etc. Easy 20-minute setup.