Sandy Bumz actually covers 52' square feet of earth when opened. When closed it is almost paper thin, lightweight and perhaps about 3 feet by 8 inches. Thin enough to sit in the bottom of a trunk or under a seat and hardly take up any space. On the packaging they include instructions to assemble and repackage the device. Those instructions looked slightly intimidating but the truth is they were not needed. When you pull it out of the bag it almost seems to open itself. Folding it back up when you leave the beach is a cinch too. To read the entire story about this product that should have been on Shark Tank, please visit: www.SouthFlorida.in