Cheap Discount Decorative Crown Molding Styrofoam M-13 Set of 4 Styrofoam molding Easy to install styrofoam crown moldings, easy to cut with regular scissors, paintable with any metallic water base paint.. SIZE 4.27 feet in length easy to clean, crown molding glue on flat serface Complements our Decorative Ceiling Tiles.They are inexpensive, light, and easy to install.Eco - friendly!Recyclable!