Mainstays 9" Easy Assembly Smart Box Spring, King - Near New, Open Box
King dimensions: 79" x 75" x 9"H - 48.04 lbs.
Sets up easily in seconds
Innovative design allows the box spring to easily fold up for storage and transport when not in use
Provides ultra-sturdy support for any innerspring, memory foam, or combination mattress
Features a 100% polyester jacquard cover