M-D Building Products 49004 Thresholds With Vinyl Seal Aluminum, 36"Highlights: Width 3 3 4" Length 36" Height 3 4" Premium finish Finish: satin nickel Low With Insert Aluminum Deluxe heavy duty threshold Heavy extruded aluminum threshold with replaceable vinyl insert Vinyl caulking feet seal bottom of threshold WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.