Ekena Millwork CM18DI2 18" OD x 3 5/8" ID x 1 1/8" P Diane Ceiling Medallion, Two Piece (Fits Canopies up to 5 3/8") Modeled after original historical patterns and designs Solid urethane for maximum durability and detail Lightweight for quick and easy installation Factory primed and ready for paint or faux finish Can be cut, drilled, glued, or screwed