Spinal Solution is a proud manufacturer of the finest quality mattresses & box Springs, with the highest standards in durability, quality, comfort, & beauty. All of our products are made in the USA to ensure that you get only the best! This item is part of our sensation collection, it has the following features: this box spring is uniquely designed to give you the kind of undisturbed sleep nature intended. Wood foundation, 5" High Continental box meets federal standards 1632 and 1633 fire code.