Cornices: Made of virtually indestructible high density urethane our cornice is cast from steel molds guaranteeing the highest quality on the market. High precision steel molds provide a higher quality pattern consistency, design clarity and overall durability. Lightweight they are easily installed with no special skills. Unlike plaster or wood urethane is resistant to cracking, warping or peeling. Factory primed our cornice is ready for finishing. Samples available. Measures 3 in. H x 96 in. L.