Suggested Retail:$145. 4" BOX SPRING. Classic Brands 4" Box Spring Instant Foundation is a low-cost solution that provides the perfect support for today's higher profile mattresses. its strong and sturdy wood structure prevents mattress sagging and supports newer heavier mattresses. The neutral poly cover attaches tightly to the foundation with Hook & Loop Fastener and coordinates well with most mattresses. The compact foundation ships in manageable pieces for easy assembly. Look for more innovative specialty sleep products from Classic Brands. 39'' W x 75'' L. 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 DAY STORAGE IS ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.