"Instead of the traditional wood box-spring/foundation, the Atlas 7.5"" metal folding foundation is not only innovative it is the perfect solution for supporting any mattress. Not only can it be assembled in minutes, the foundation folds together and there are no tools necessary so any one can assemble it. The solid metal construction makes it more durable than a standard foundation and it increases the longevity of your mattress by offering additional support by preventing it from sagging and the foundation cover coordinates well with most mattresses. Size: Queen. Gender: unisex."