80 Ft of 3.5" Duncan Foam Crown Molding room kit W/precut corners on end of lengths 4 inside & 1 out (AVAILABLE IN 5 OTHER STYLES AND QUANTITIES-SEE OUR OTHER LISTINGS) by Austin Crown Molding Great for regular walls and for indirect LED or rope lighting. With the flat back design you can cut the molding with ease in most any position in most miter saws. Installation kit for this item search ACM80-Install Adheres with painters caulk to drywall, brick, block, wood, concrete, stucco etc. Smooth, white, high density, polystyrene foam crown moldings. The easiest crown molding that you will ever install.