4 Inch Box Spring for King Size Mattress - Spinal Solution Collection | Durable Support for Bed Frames, Ideal for Master Bedrooms & Guest Rooms

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.