Petra Box Spring CoverA classic matelass diamond design, Petra's simplicity belies a sumptuous elegance that establishes it as a new signature in the Matouk collection. Demonstrating our artisanal savoir faire, it is crafted in soft pliable cotton with a subtle sheen and fluid drape. Discover an endlessly versatile style that will pair with just about everything. All box spring covers have a 13" pocket.