Bought new last year Value City Furniture, used with 4 poster bed for 6 months.
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Support: Made of high-carbon steel, designed for use with a box spring and a headboard and footboard that feature a hook-in connection style. Features center support bar with adjustable legs for enhanced stability and to prevent mattress sag and provide a stable foundation for the box spring and mattress set.
Connection System: The "hook-in" design means the side rails and cross supports connect to compatible headboards and footboards with simple, slot-in connections, usually without requiring any tools for assembly.
Compatibility: Designed to accommodate standard Queen size mattresses and box springs (approx. 60" x 80") and work with various mattress types, including memory foam and gel foam, provided a box spring is used.