... pine wood and polywood 3. bed frame 4. strong bed legs Box spring soft bed ! N-15 1. Specifications ... spring mattress5Size(10'' high)1) Single: 39'' *74''2) Double: 54'' *74''3) Queen: 60'' *80''4) ... PVC film + craft latest 5-zone pocket spring mattress9Warranty20 years Box spring soft bed ! N-15 10PaymentT/T ... AND BASE, SUCH AS FOAM MATTRESS, SPRING MATTRESS, LATEX MATTRESS, MASSAGE MATTRESS AND SO ON ...