This genuine MTD 74204405C 2-in-1 lawn mower blade is designed for optimal performance in both bagging and mulching applications. Measuring 460 mm (18 inches) in length and 57 mm in width, it features a durable 3.8 mm thickness. The blade is equipped with a 6-point star center hole and two outer holes with a 7.9 mm diameter, spaced 63.5 mm center-to-center. It is suitable for various MTD, Cub Cadet, and other compatible 46 cm (18 inch) cutting decks.