Chemcrest Ceiling Ring 36 Inch Outside Diameter Primed White Polyurethane Made in America. easy to install with glue or nails made of high density polyurethane for a lightweight product Primed. Ready to paint and/or stain. Resembles original plaster medallions. Won't warp, split or splinter Inside Diameter 28 1/2". Ring width 3 3/4" projection 1 1/8"