Zinus Quick Lock® 4" Metal Smart Box Spring®, Queen

We like to think of the Quick Lock® Metal Smart Box Spring® as the 2.0 version of your traditional mattress foundation. Made sturdier than ever by its substantial steel frame and with its game-changing assembly method . we've developed a better way to deliver great sleep to your door. Created with closely spaced slats to accompany your latex . memory foam or spring mattress . this durable box spring comes in three different thicknesses so your bed can be as short or as tall as you like it. The Smart Box Spring® features our fool-proof Quick Lock® assembly system . meaning you spend less time screwing in bolts . and you get to be pleasantly surprised by how simply and quickly it comes together. You may even pat yourself on the back once you're done (in fact . we encourage that). We're so sure of this foundation (along with hundreds of happy customers) that it's backed by a 5 year worry-free warranty . so you can sleep confidently for years to come.