DIY Decor Glue-up Styrofoam Ceiling Tile 20 in x 20 in R31W 56/Lot (147.84 S/F)
The ROYAL collection is the most popular type of decorative ceiling tiles, made out of Extruded Polystyrene (a kind of Styrofoam), ideal if you want to change your decor substantially without straining your budget.