These were used for one season. This is a set of 14 rings. We live in southwestern Pennsylvania and can deliver in local area. The item “Solar sun swimming pool rings” is in sale since Thursday, June 30, 2016. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Pool Equipment & Parts\Pool Heaters & Solar Panels”. The seller is “grusesr” and is located in Sycamore, Pennsylvania. This item can’t be shipped, the buyer must pick up the item.