The Lanai is 7' x 3' and 4" thick. The Lanai comes with a hand pump designed specifically for the high pressure valve on the Lanai. The included hand pump will fill the Lanai to the desired pressure with ease. Use the Lanai to lay out in the sun, let the kids play king of the hill, or use it as a mobile dock to store your gear. You can even use it as a starting platform or simply set up a lawn chair & a cooler and cast your line in the water. The options are endless. The Lanai is made of the highest quality materials and is extremely durable. It's covered against any defects for a period of 1 year, but the Lanai will surely last for many years as long as it's cared for.