PRODUCT SPECIFICATION ilk wadding=?ij Polyurethane foam=1" (Density 18kg/m") Silk wadding=f Polyurethane foam=3" (Density 22kg/m3) Polyurethane foam=1" (Density 18kg/m3) Polyurethane foam=2½ (Density 18kg/m3) Polyurethane foam=3" (Density 60kg/m") Polyurethane foam (Density 18kg/m") ➔· MDF Hardwood Plywood Pinewood Metal Feet Polyurethane foam (Density 18kg/m") Silk wadding=t ➔·