Firestop Plank, Fire Rating 2 hr, Fire Resistance Type Fitted Barrier, Firestop Type Block, Interlocking Not Applicable, Overall Height 2.36 in, Overall Length 39 in, Overall Width 5.12 in, Color Maroon, Features Installation Requires No Special Tools, No Cure Time, Primer Paint Ready: Block is Paintable with Primer, Repaired and Reused as Needed, Fits Medium to Large Openings in Wall and Floor Through-Penetrations, Tight Firestop Seal